That may be true, but Maya chooses not to take responsibility for her various relationships or take the time to consider her own feelings and actually talk to the people that those feelings concern. Instead, she bawws about her brother, bawws about her love-interest/rival, and bawws about her brother's girlfriend/rival. In the end, its everyone else that mans up and fights like hell while she just sits there screaming "Onisan!" That, and she doesn't take her sister's feelings for Souichiro into consideration and instead of telling the little shit that she's not interested(because she's obviously still carrying a torch for Mitsuomi for whatever reason[probably gave awesome dickings]) and pointing him in her sister's direction, she does nothing. No surprise there, really, since that's what she does best.