When Yūna is not around Nanami Oda, she is extremely serious about her duties as a member of "The Environmental Protection Committee". She is very attractive, intelligent, very popular amongst the girls of St. Michael's. However, when she is alone with Nanami, the previous personality shatters entirely, shown to be very childish and perverted towards her. Often, making statements on how cute she is. She also seems to very possessive of Nanami, stating that she will not let anyone have her.

Yūna