Let's begin shall we?
Story: 7/10
When I first read the Summary I felt a sense of "Why exactly am I going to watch this?". The idea of a 15 year old girl wanting to have sex with 100 men seemed to be a bit far fetched, but none the less entertaining in it's own way. Not exactly something I would prefer, though.
One could argue that it's a pointless plot but in my opinion it makes for an interesting story. Because to tell you the truth watching her fail at her goal and trying different ways of achieving it was indeed very funny. Through out the series the main character 'Yamada' tries to have her way with a certain boy named Kosuda, who happens to be a virgin just as she is. If you enjoy comedy Ecchi, then this series is for you
Art: 6/10
The animation/art work of this series is very...Colorful, I'm sure that is apparent. Bright colors is commonly seen through out the show. To be honest though, I didn't see any part of the art work that really caught my eye and make me say "That animation" xD.
The style of the characters is very appealing, and it doesn't look disgusting. I've seen a few ecchi anime's. And some of them created a very, erm, distracting, form of animation. Over all I find the art work to be nice to look at and not overly flashy.
Sound: 5/10
...I didn't exactly think that the music series was bad per say. But I didn't see anything that really stood out for me in a way that I would listen to it over and over. However, I will say that the theme song was very catchy. But really the sound wasn't very unique, it had a very moe kind of feeling to it. Which isn't exactly surprising given that it is an Ecchi anime.
Character: 9
LET ME JUST SAY THESE CHARACTERS ARE FUNNY AS HELL.
None of the characters that I have met in this series have been boring, dull, had no personality, or do nothing. The amount of character development in this series is fabulous as well. I feel the need to mention this considering the plot line. You'd expect the main character to be sorta slutish (Forgive me for using that term .-.) and vain. But it's the opposite.
Yamada is very nervous and self conscious, like as mentioned in the series a few times she thinks her vagina looks weird. I like how they treated her character and showed it in a very realistic way. When it comes to some one's first time having sex people aren't confident that they will do well, they don't really know what they are doing and are self conscious about their body. Yamada was a very realistic character.
For this I give kudos to the person who came up with Yamada's character, and also with the rest of the characters too.
Enjoyment: 7/10
This anime was very enjoyable to me, but not really on my top list of favorite anime's. It's funny, romantic, fanservicey and really a mix of ecchi.
Over all: 6/10
I feel a little harsh giving it a 6, but to be honest I think that is what it deserves. Maybe it's because I'm not really a huge fan of Ecchi comedies. However I would indeed recommend this anime to anyone who is into this sort of thing. I do seem to find myself watching it over and over again.
All though I would not suggest buying it (In my opinion it's not really worth it). Streaming it would be a good thing to go for. It's available on pretty much every anime site and it's on netflix as well.
Lastly, when it comes to the dub. I personally don't see anything wrong with it. I am usually the kind of person who prefers dub, but I know when a bad dub comes along. If you watch it subbed or dubbed it's up to you, but if you are a person who prefers dub like me, the dub is just fine.
Thank you for reading this, enjoy the anime :)
