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...?!
So a lot of them wanna fool around 
 before they have to tie the knot.
Sie wollen sich noch ein wenig austoben,
bevor sie den Bund fürs Leben schließen.
así que quieren divertirse en el poco
tiempo que tienen antes de casarse.
Así que quieren divertirse
alors elles se donnent le temps du lycée
pour s’amuser avant le mariage.
Quindi, prima del grande passo,
Então muitas delas querem
fazer besteirinhas antes de casar.
Вот они и хотят поразвлечься
перед свадьбой, пока есть время.