Tada Banri has forgotten his past, but is eager to start a new life. Yanagisawa Mitsuo, on the other hand, wants to forget his past at all cost. Meanwhile, Kaga Kouko seems incapable of forgetting—she's had Mitsuo on her mind since pre-school. After a dangerous brush with crazy cultists, Kouko tries out a new scheme on Mitsuo. Taking inspiration from her talk with Banri while they were lost in the forest, Kouka has decided on playing the aloof card. She's going to spring a "catch me if you can" act on her beloved. Question is, how long can she stay aloof when it seems Mitsuo's developed a crush on a new arrival—the plucky and pint-sized, but always cheerful, Oka Chinami.