Tensura Nikki: Tensei shitara Slime Datta Ken

The Slime Diaries: That Time I Got Reincarnated as a Slime

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Alternative Titles

English: The Slime Diaries: That Time I Got Reincarnated as a Slime
Japanese: 転スラ日記 転生したらスライムだった件


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Apr 6, 2021 to Jun 22, 2021
Premiered: Spring 2021
Broadcast: Tuesdays at 23:00 (JST)
Licensors: None found, add some
Studios: 8bit
Source: Manga
Genres: ComedyComedy, FantasyFantasy, Slice of LifeSlice of Life
Demographic: ShounenShounen
Duration: 23 min. per ep.
Rating: PG-13 - Teens 13 or older


Score: 7.541 (scored by 7048870,488 users)
1 indicates a weighted score.
Ranked: #15002
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #809
Members: 215,617
Favorites: 1,602

External Links

Ranked #1500Popularity #809Members 215,617
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Episodes: /12
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"Dear diary... I got reincarnated as a slime."

Even in another world, lives aren't always on the line. There's plenty of work to be done, from feeding the community and forging the items the community needs; as well as plenty of play ...and hijinks throughout! Join Rimuru and friends as they kick back and enjoy their daily lives.

(Source: Kodansha Comics)


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Episode Videos

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Related Anime

Characters & Voice Actors

Tempest, Rimuru

Okasaki, Miho

Nava, Milim

Hidaka, Rina


Senbongi, Sayaka


Ichimichi, Mao

Tempest, Veldora


Izawa, Shizue



Furukawa, Makoto


Kobayashi, Chikahiro


Eguchi, Takuya


Tomari, Asuna


Haibara, Yuuji
Terashima, Takuma
Theme Song Lyrics
Kumada, Akane
Theme Song Performance
Original Creator


Opening Theme

"Brand new diary" by Akane Kumada

Ending Theme

#1: "Brand new diary" by Akane Kumada (ep 1)
#2: "Kamona Tempest! (カモナ・テンペスト!)" by Rimuru (Miho Okasaki), Great Sage (Megumi Toyoguchi), Veldora (Maeno Tomoaki), Shuna (Sayaka Senbongi), Shion (M.A.O), Ranga (Chikahiro Kobayashi), Gobuta (Asuna Tomari) (ep 2)
#3: "Oyasumi Orange (おやすみオレンジ)" by Rimuru (Miho Okasaki) (ep 3)

Jun 22, 2021
Stark700 (All reviews)
Spinoffs made these days carries a certain level of risk and this is especially true for fans of their favorite franchises. This can apply to any media, whether it's anime, live action movies or TV shows, and even video games. Being loyal to a brand is part of our DNA and although not everyone follows that mindset, spinoffs usually at the very least must fundamentally meet the expectations of the what it tries to sell.

What does that tell you about Tensura Nikki: Tensei shitara Slime Datta Ken? Well, it is a spinoff and is based on the TenSura franchise set in the same universe. The read more
Jun 22, 2021
KANLen09 (All reviews)
If there was one way to summarize this spin-off, it'd be: "How good and pleasant it is when we, the denizens of Tempest, dwell together in unity, to praise and commune with the Great Rimuru-sama".

Ever since the announcement (and eventual airing of the 1st Cour) of Season 2 of TenSura, fans have been kinda complaining that the source material's adaptation have been wishy-washy, as if to premonition the events of what Season 2 will be carrying forward for the franchise, and leaving what's left of Season 1's smaller and minor contents behind for the "greater good". Well fear no more, because this spin-off (which is read more
Jun 22, 2021
ren0080 (All reviews)
I don't usually like spin-offs, and this is one of those that I don't like.
I just don't get why they make a series (spin-off) that doesn't really accomplish anything.
This is just a bad spin-off because it is strictly maintaining the anime's status for it's characters. Meaning, they keep the characters same throughout this spin-off so that it won't contradict with the main series. And it's not that it's bad, it's just that this entire spin-off is pointless because it didn't accomplish anything. No character developed nor story progressed. There's no meaning to this spin-off existing.
If it was like at least 12 minutes per episode, read more
Jun 22, 2021
tensura1704 (All reviews)
After the completion of Tensura S2 part 1 (Also known as That Time I Got Reincarnated as a Slime or Tensei shitara Slime Datta Ken) many of us thought that this spin off is the continuation of the story. But it's not!! This spin off is 100% different (Also not related to Main story). It deepens the bond between the characters...


Well, to be frank, everyday is a new story in our life. This story main theme is about daily lives of them. How Rimiru works in the town, what will they do at free time, parties and festivals. I really love how they showed their read more

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Recent Forum Discussion

Poll: Tensura Nikki: Tensei shitara Slime Datta Ken Episode 12 Discussion ( 1 2 )
KANLen09 - Jun 22
64 replies by nanajp »»
Sep 20, 10:47 AM
Rimuru Tempest is a guy not a girl ( 1 2 )
R1an-sama - Apr 27
83 replies by Rimuru_I-guess »»
Sep 14, 3:32 PM