Reconnecting with her biological mother and her new family has put Rin at peace with her unfortunate beginnings. Now, becoming a big sister is cause for happiness for the levelheaded young woman. But despite this closure, all is not roses for Rin. The world around her seems obsessed with romance-Kouki still vies for Rin's affection, Reina jumps between relationships, a classmate shows his interest in Rin herself. Yet Rin finds herself trapped between her heart and her head when she realizes that her feelings for Daikichi might be more than those of a daughter for a father. And when Kouki pieces together the truth, is Rin and Daikichi's quiet, content existence headed for heartache?