Yuka is a character forever marked by a series of trans-cultural oddities; the series' secondary protagonist, who she is deeply in love with, is also her first cousin. She, on several occasions, strikes her would-be boyfriend for seemingly petty reasons. It is her childhood demand for the attention of her love interest that provides the final straw in the breakdown of the series' main character. Her giving nature towards the other residents of Maple House is contrasted with her sometime lack of sympathy for her love interest's traumatically-induced memory loss.