"I won't stop until you tell me to." Back in high school, Mitsu shared a physical relationship with his childhood friend, and unrequited love – Nana. But one day, Nana suddenly asked, "Shall we stop doing this?" Unable to say no, Mitsu lost his chance to confess and watched his first love slip away. Since then, they haven't spoken, yet Mitsu has never truly moved on. Now a college student, he's shocked to run into Nana while working his part-time job. Relieved at first when it seems Nana doesn't recognize him, Mitsu's peace is short-lived. Nana waits for him after work, and they end up at Mitsu's apartment. There, for reasons Mitsu can't understand, Nana begins showing an almost obsessive interest in him. As old wounds reopen, Mitsu struggles between the pain of the past and the feelings for Nana he can't seem to let go of...