Description:

Hasegawa is a girl who loves swimming and gain entry into an elite school on the recommendation of a teacher, the day of the entrance ceremony she sneaks to the pool and meets a boy who suddenly kisses her... a month later she discovers that the mysterious boy is her new trainer.

Alternative Titles:

好きになってはいけない人, Hatsukoi Ryuuseigun, Ore dake no Nakimushi-chan, My Sweet crybaby, 25-ji no Cinderella