Keikenzumi na Kimi to, Keiken Zero na Ore ga, Otsukiai suru Hanashi.

Ryuuto Kashima is a shy student who never imagines he could date Runa Shirakawa, the outgoing and popular girl in his class. Then he loses a bet with his friends and is forced to confess to her, only for Runa to accept with surprising simplicity and begin their relationship immediately.

The difficulty is that they come from completely different romantic worlds. Runa has dated before, while Ryuuto barely knows how to behave on a date, and his insecurity leads him to hide the relationship and misread many of her actions. Even so, they gradually learn to speak honestly and grow closer, until Maria Kurose, the first girl Ryuuto ever liked, returns to his life. He must then prove that having less experience does not make his present feelings any less sincere.