Taichi Ichikawa

A vortex drops a being from another world into a yakuza's life - a life that's about to be greatly changed. (imdb)

Yuu has always loved shoujo manga and awaits the day she gets a love confession that sends her heart aflutter with bubbles and blushes, and yet when a junior high classmate confesses his feelings to her...she feels nothing. Disappointed and confused, Yuu enters high school still unsure how to respond. That's when Yuu sees the beautiful student council president Nanami turn down a suitor with such maturity that she's inspired to ask her for help. (imdb)

Alisa Mikhailovna Kujou is considered the idol of her institute. She has won the hearts of countless male students and is admired by everyone else, but everyone is wary of this almost perfect girl.