During their first night sharing a room, Yuzu had her first kiss stolen by her step sister. Since then she can't get Mei off her mind, while Mei herself goes on as if nothing happened. Meanwhile, Mei's Grandfather, the chairman of Aihara Academy, takes Mei back to his mansion. Unable to forget the sad expression on Mei's face when they kissed, Yuzu heads to the mansion to confirm Mei's true feelings, but...?!
Do girls here flirt with other girls, 
even if they don't like them?
Ist’s hier üblich,
¿Sabes si estas chicas coquetean
entre ellas aunque no se gusten?
¿Sabes si estas chicas coquetean
con otras chicas aunque no les gusten?
Les meufs de notre lycée,
Ma le ragazze di questo posto...
Meninas aqui flertam com outras meninas,
mesmo sem gostar delas?
а здешние девицы, хоть и не влюблены
друг в друга, всё равно нежничают?