On a certain Valentine's Day, Shuya gets acquainted with Shizuka. Apparently, her one-sided love did not take her chocolate. Calming her, he was given chocolate instead of another.
Thus, they begin to get along. However, Shizuki's love is gradually becoming obtrusive. In addition, there is also his childhood friend, who has a strange love for him, and a crazy girl who considers him his predestined partner.
And so, Shuya's life changes a lot, starting from the moment he received the chocolate ...