Ichiro Kuga is a manga artist struggling to support his two young siblings, and he's in need of an assistant. Shiori Goshiki wishes to become that assistant, but her background is unusual in more ways than one.

Shiori meets with mixed results when she tries to get additional assistant work with local manga artists. In an effort to encourage her, Ichiro takes a leaf from her book and decides to put his thoughts down on paper.

The fated day arrives, the day when Ichiro and Shiori will annul their Engagement Pact. But there's a risk their feelings for each other will vanish in the process, and there's no way to be sure without performing the ceremony.