Himeko Momokino is the antagonist of the yuri manga "Citrus".She is the Student Council vice-president and Mei Aihara's long-time friend. She's a rich and stubborn girl.
- She have been beside Mei for a decade, ever since the day they met she have been taking care of and protecting her.
- She feels furious jealousy when Yuzu is with Mei.
- She is suspecting Yuzu for doing bad things to Mei because she is always worried about Mei's state.
- She is claiming that she is the one who understand Mei the most, and she knew her weakness.
- When she is alone with Mei, she takes the lead to touch her.