 https://myanimelist.net/anime/59791/ Plot Summary The story of Ruri, a girl who likes jewelry and accessories, diving into the world of mineralogy. Other Information Type: TV Episodes: Unknown Status: Currently Airing Aired: Jul 6, 2025 to ? Premiered: Summer 2025 Broadcast: Sundays at 21:30 (JST) Producers: Aniplex, Egg Firm, Bit grooove promotion Licensors: None found, add some Studios: Studio Bind Source: Manga Genre: Slice of Life Themes: CGDCT, Educational Demographic: Seinen Duration: Unknown Rating: None |
| Episode 1 This is certainly a cute way to learn about minerals seeing that girls are into jewelry more so than guys are. Ruri is somebody who is into jewelry, and when she has a chance encounter with Nagi, a college student majoring in mineralogy, they go digging rocks in the river and other places, and Nagi shows just how knowledgeable she is about minerals. Pretty educational stuff here as Ruri has certainly found learning about rocks fun and interesting to the point where she's buying gear to go mining. |
| Lord have mercy. Thicc Girls Collecting Minerals. And a hot mom at the stove. Does the artist do any hentai? Asking for a friend. |
| Ruri is annoying yet I shall continue to watch and learn |
 |
Reply to SparkyBob
Lord have mercy. Thicc Girls Collecting Minerals. And a hot mom at the stove.
Does the artist do any hentai? Asking for a friend.
Does the artist do any hentai? Asking for a friend.
| @SparkyBob I think the character designer does 18+ doujinshis. I need to check, but I think this is the same artist for the LN "There Is Also a Hole in the Student Organization!" |
| I'm a cultured degenerate. |
Wow I never knew I liked rocks so much! I just couldn't look away for some reason  Seriously that animation was so beautiful it made me sad about all the other poorly animated crap I have sat through. This is the care I wish was put into Takamine-san ;_; Really wish we had graduate students like that in any department when I went to school :( |
Reply to SparkyBob
Lord have mercy. Thicc Girls Collecting Minerals. And a hot mom at the stove.
Does the artist do any hentai? Asking for a friend.
Does the artist do any hentai? Asking for a friend.
| @SparkyBob Their twitter feed is fun https://x.com/monsuun As to your question just search under the name Monsuun he apparently likes making gifs  Dude definitely has an excellent grasp of anatomy and how to animate it o_0 I am very much looking forward to 12 more episodes of this fine craftsmanship. |
MenchiK1Jul 6, 8:04 PM
| He likes the badonkadonks. Not sure why they called the Okhotsk plate, the North American plate...the Okhtosk plate is a completely different plate |
| No one-- AND THE ROCK MEANS 'NO ONE'!!!- that could convince me that this Anime's production team is fetish free xD It's not just the thiccness... it's the freakin details of the thickness! Someone really knew where they wanted those sexy lumps: When Nagi crosses her legs, there's this detailed lump on her Quads. During the booty shot, there was these detailed folds on the sides of the hips and near the crotch area. And the tiddies... by gawd, those tiddies goes beyond plus ultra! xD They can't lie to me... cuz it takes one to know one. xD Kidding aside though. I love how educational it's been. Reminds me of Dagashi Kashi; It's also a mix of educational and ecchi but about the origin of Japanese sweets and snacks (Still wish that had a TV ending T-T). |
   |
| Episode 2 And now, Ruri and Nagi go for the gold. Something this valuable wouldn't be so easy to find as what Nagi digs up is actually pyrite and while it looks like gold, it's actually quite common. Then they do down by the river to pan some gold managing to get a spec of placer's gold before a rainstorm forces them to stop for the day. While Ruri thinks all the gold washes away, she forgets that a new batch comes from upstream. Not to mention, there's a pothole where gold tends to gather, and they got quite a good amount of it. And that's a valuable lesson worth more than its weight in gold, pun intended. |
| They scaled back a bit on the horny angles this episode in favor of teaching us about placer mining, although a couple of shots of Ruri in water were beautifully (if tastefully) animated. Still soothing and enjoyable. |
| Having been a sexy grad student myself, though unfortunately not as impressive as Nagi, I like this a lot. I know the physics of crystal structures, but nothing about the geology; I particularly like how the first two episodes emphasize how the physics at different scales affects mineral deposits. Ruri Rocks is actually talking some good science. And though Ruri and Nagi are clearly unrealistically lucky in their finds, the show isn't being flashy with the science; an analogous show about physics wouldn't be able to resist making it into a science-fiction absurdity, or a pop-science Neil deGrasse Tyson cringefest. (Of course, an analogous show about physics would be a lot more boring, as we're primarily doing little inscrutable things in labs, writing long equations on paper, and messing with code.) This actually manages to talk about the little details rather lovingly. Scientists are always wary of popularizations of what they do, but this to me seems like something geologists would actually like. |
| I love him who is ashamed when the dice fall in his favour and who then asks: Am I then a cheat? – for he wants to perish. |
Reply to MenchiK1
@SparkyBob
Their twitter feed is fun https://x.com/monsuun
As to your question just search under the name Monsuun he apparently likes making gifs
Dude definitely has an excellent grasp of anatomy and how to animate it o_0 I am very much looking forward to 12 more episodes of this fine craftsmanship.
Their twitter feed is fun https://x.com/monsuun
As to your question just search under the name Monsuun he apparently likes making gifs
Dude definitely has an excellent grasp of anatomy and how to animate it o_0 I am very much looking forward to 12 more episodes of this fine craftsmanship.
| @MenchiK1 Something's off about her feet there, though; she wouldn't be able to twerk thus without balancing better, or at least shifting her feet a little. |
| I love him who is ashamed when the dice fall in his favour and who then asks: Am I then a cheat? – for he wants to perish. |
| that Gold nugget they found at the end would be worth many thousands of dollars. I was hoping Nagi would tell her that iron pyrite is called "fool's gold". |
Reply to MenchiK1
@auroraloose
What do you mean? You can't rotate your foot at the talus bone? And you claimed to have been sexy.
What do you mean? You can't rotate your foot at the talus bone? And you claimed to have been sexy.
| I mean that, standing as she is on that part of her feet next to her toes (I'm a physicist, not a doctor), and keeping the entirety of her feet motionless, she wouldn't be able to hold her balance moving around like that. You can try it yourself, you'll fall over. And yes, I did just try to do that. EDIT: I should say, though, that, not knowing anatomy or the kinetics of human motion, the way her breasts bounce does seem at least physically correct. (I'm afraid the motion is too quick to observe upon myself, and I know better than to describe what I do see.) |
auroralooseJul 14, 7:52 PM
| I love him who is ashamed when the dice fall in his favour and who then asks: Am I then a cheat? – for he wants to perish. |
MenchiK1 said: Also, yeah it was a joke feet don't work that way, but having to explain that obviously ruins it... the gif seems to have disappeared now, but my head canon said she was propping her heals up on a step or box, but the box wasn't drawn so it wouldn't hide her feet. |
Reply to MenchiK1
@auroraloose
Just film yourself and post a video. I'm sure someone here can help you figure it out.
Also, yeah it was a joke feet don't work that way, but having to explain that obviously ruins it...
Plus for animation many times for something that won't appear on screen (like the scene will be zoomed in so you don't see below the knee) or something in the foreground will be added to obscure it (her feet will be behind something in the foreground) they don't bother animating those parts. Though in this case I think with what the focus is supposed to be they assume no one will be looking at the feet and so didn't bother properly animating them.
Just film yourself and post a video. I'm sure someone here can help you figure it out.
Also, yeah it was a joke feet don't work that way, but having to explain that obviously ruins it...
Plus for animation many times for something that won't appear on screen (like the scene will be zoomed in so you don't see below the knee) or something in the foreground will be added to obscure it (her feet will be behind something in the foreground) they don't bother animating those parts. Though in this case I think with what the focus is supposed to be they assume no one will be looking at the feet and so didn't bother properly animating them.
| @MenchiK1 Yeah, you're right, I did miss the sarcasm there, but because I was too absorbed in the physics, which happens sometimes. There's an episode of Keijo!!!!!!!! where one of the girls wins because both of them had fallen off the stage at the same time, but the one whose breasts were rotating at high angular velocity pushed the water level down so she hit the water second. But I'm pretty sure a falling, rotating sphere would actually lower the air pressure, causing the water to rise. And yes, if she were somehow able to keep her feet anchored thus (e.g., by standing on a step) it'd make more sense. But I tend to think that including the more physical balancing motions rather than keeping her feet still would look sexier. |
| I love him who is ashamed when the dice fall in his favour and who then asks: Am I then a cheat? – for he wants to perish. |
| Episode 3 Ruri makes a visit to the college Ruri is studying at where she meets her colleague Yoko, and learns the ins and outs of mineralogy research as it is important to publish all findings on it, and she even got mentioned in it. And then she finds an old topographical map that appeared to be trash, but it's actually the key to discovering some minerals from a mine that was closed. While it no longer serves as a mine, there's still plenty of treasure to be discovered there, and there's a lot of fluorite that has manifested in the years since it closed. Ruri continues to learn more about rocks, and it's a good thing Yoko is quite knowledgeable about maps. |
| And once again we learn that mineralogy is best demonstrated by attractive young ladies who have apparently been poured into their clothing. |
| Episode 4 It's tiny, but Ruri has a sapphire after collecting sand from under the bridge. This has her wanting to study stand from the river to uncover a giant sapphire from the source. Of course, examining all that sand requires a lot of time, but she found a way to do it more efficiently by using a magnet to filter out all the magnetic ores. Ruri sure does have a future in mineralogy seeing that she's quick to learn about stuff like this. She doesn't have her giant sapphire, but she does have a couple of small pieces and is determined to follow the river upstream to find it. |
Hmmm didn't expect this to turn into a cooking show with Nagi baking brownies ;P Anyway, that episode was kind of a break for the animators, and I can't believe no one had thought of that with magnets before (it was the first thing to pop into my head). Oh well still enjoyable, looks like it mainly served as a tease for the introduction of her classmates. |
| The opening scene looks like it was given to a trainee. It didn't require much animation so a good one for a newb, but dammit, Nagi may be thicc but she's not that thicc! |
| Episode 5 Ruri and company head out to the shore during a low tide, and find some beautiful agates and other rocks, and she finds a number of them by a big rock. Seeing that minerals are carried by the waves that this was the perfect opportunity for them. And while continuing her search for sapphire, Ruri finds what she believes is silver. But it turns out to be something rarer than that as based on the gravity test, it's about as dense as gold. To determine if it is really platinum or something else, the girls head upstream towards the source to see if they can find serpentinite. And once again, these girls continue to learn quite a lot about the world through searching for these minerals that can explain quite a lot seeing that those are the only things that have been there for the millions of years it too for the Earth to become what it is today. |
Beautiful  Too bad not many girls realize how much more attractive intelligence makes them. Darn looks like we missed a scene of Nagi and Ruri taking off their leggings :(   Nagi in shorts, nice. This show continues to be the best of the season hands down. As unrealistic as it is because if they really did find such a rich source of platinum and those other rare elements they'd all be rich LOL |
MenchiK1Aug 3, 8:25 AM
| yay nagi in shorts |
| I said it was platinum as soon as she found it. It confused me when Nagi didn't confirm it |
| And they all got cancer from radiation. |
| Cursive is the future. - Nate Bargatze |
| Thick, glasses, loves books... This show is far more interesting than I thought it would be |
|
| Gold is worth more than 2x the price of platinum right now. Crazy. |
| Cursive is the future. - Nate Bargatze |
| Episode 6 The search for the sapphire deposit continues as they continue to to go upstream towards the source of the river and narrowing down the possible places. The fallen leaves pose a big problem, but Ruri comes up with the idea to study the sand around the Seiryuji Shrine. Just when it looked like they didn't find anything, Ruri looks at an old sample and realizes that the place to look is somewhere in the middle of the branches of the river. So after putting the pieces together, they set out for the site, and they hit the jackpot when Ruri falls into a hole, which is the place a boulder used to before it was pushed down the slope by the magma. So with that, the girls found their sapphire in spades, while learning a bit about the history of the shrine as it used to be located in that spot a long time ago. |
| Episode 7 A new girl is introduced in Shoko, one of Ruri's classmates whose curiosity with rocks and minerals came to be when she was a little kid. During a beach trip, Ruri finds something that turns out to just be sea glass, but even so it has its origins out in sea. The glass is likely something from a long time ago when glass was disposed of by burying it under the sand that eventually washed out to sea and is in the process of breaking down, something that takes centuries to happen. So after spending a day at the beach, they recover a ton of decades-old glass bottles that have a rainbow shine to them, all while Shoko's curiosity goes to the next level. Shoko made quite the impression there as another high schooler who is into rocks, and she's even more interested after meeting Nagi and Yoko. |
| Shoko is cute but she needs to start packing away the karaage if she wants to fit in with the Thicc Rockhounds. |
| Best episode 🤩🤩🤩 Loved that Imari got an apprentice of her own & Seto finally got a mentor who encourages her interests.  |
  |
| I'm worried being a geologist won't pay enough, I hope she works at a sweets or flower shop instead? Huh? |
HOOfan_1 said: I'm worried being a geologist won't pay enough, I hope she works at a sweets or flower shop instead? Huh? Well, see, that's where she might find a rich husband. :-D |
SparkyBob said: Well, see, that's where she might find a rich husband. At a chocolate or flower shop, she's more likely to find a rich guy who's already married to break up his home. |
| Episode 8 And now, the girls follow the trail of zinc up the river that all started when Shoko found a piece of what turned out to be zincite, but dropped it and lost it in the river by accident. They trace the increasing zinc content upstream that leads them to an abandoned factory. And there, they find a bunch of zincite forming inside a tube, which is quite a rare discovery. Granted, this is manmade zincite that was the result of conditions made to grow it as naturally-grown zincite is quite rare since it requires specific conditions that are rare around the planet, but nevertheless they made a discovery worth its weight in gold. |
| I think the translator messed up on that indicator metal chart. Bronze does not occur naturally, it must have been copper |
| Episode 9 Ruri and Nagi go searching for opals, but that didn't go anywhere. Then Ruri and Shoko go panning for gold after a rainstorm with Ruri explaining what she learned the last time she went panning for gold, but ends up with pyrite, while Shoko found a quartz. Then with Nagi all soaked, she changes into a maid outfit that Shoko gave her, which is nice but impractical for mining. After the rainstorm, the girls head off to the dam where Nagi explains that Japan doesn't flood as much as it used to in the past thanks to the dam, and that because it regulates water flow that a number of rocks pushed downstream are stopped by it. And that provides an opportunity to discover a giant pool of opals. That was great to see them finding a treasure trove of opals, all while Nagi would look great in all those other outfits. |
| Someone got lazy and didn't put up translations for eye catch cards |
More topics from this board
Sticky: » Post the Anime You've Watched Today ( 1 2 3 4 5 ... Last Page )boldulysses - Oct 19, 2022 |
1437 |
by Graumann
»»
2 hours ago |
|
» Secrets of the Silent Witch Discussion ( 1 2 )GridironOtaku - Jul 4 |
93 |
by Greylurker
»»
3 hours ago |
|
» Demon Slayer: Kimetsu no Yaiba Infinity Castle Part 1 DiscussionGalaxy-Crisis - 5 hours ago |
1 |
by Galaxy-Crisis
»»
5 hours ago |
|
» Betrothed to My Sister's Ex Discussionrunec - Jul 4 |
32 |
by SparkyBob
»»
5 hours ago |
|
» Alphabet Conversation Game ( 1 2 3 4 5 ... Last Page )GridironOtaku - Oct 31, 2022 |
479 |
by OniMage
»»
10 hours ago |