Story
Well...at first episode I was kindda sceptical that all about was a girl wanting to make up with 100 guys...But as the story evolved trough episodes I was delighted to see that kind of plot...In fact...I think that sort of plot/situation we can find it in real life too... I loved the plot till the very ending..Not to say it was very funny :D
Art
I don't have anything to complain...I totally loved the graphics and colours from this anime...
Sound
I really loved the soundtracks...It's a pitty that were just a few though...Really loved the OP & ED
Character
I really liked how they contured the school life of 2 virgins like Yamada and Kosuda [wait...actually that red haired guy was virgin too :/ right? -] . From my personal view...I really love Yama's personality .< [what a dragg >.< -]