Three years prior, Kensuke Ooshiba told his best friend, Asaya Hasekura, that he hated him before the latter departed for another school. Since then, Kensuke has regretted those words and wishes he could apologize to Hasekura. When Hasekura enrolls at Kensuke's school and ends up in the same class, Kensuke views this as his opportunity. Although Kensuke lacks the courage to start the conversation, Hasekura approaches him as if nothing had ever happened. After finally apologizing, Kensuke is overjoyed that their relationship has been rekindled. Unbeknownst to him, however, Hasekura is eager to go far beyond the boundaries of their friendship.