In a Japanese high school, a class of adolescent geeks joins the new synchronized swimming teacher and takes up the challenge to take part in the competition, in spite of the mockeries of the "real sportsmen".

All it takes for a bunch of schoolboys to join the swim club is the arrival of a pretty teacher who clearly is considered a babe. The number of participants quickly swells. Alas, the teacher specialized in synchronized swimming and finds out she is pregnant and has to resign from her position. The boys are stuck with the feminine sport since they owe some money now and the school festival at which they are to perform is fast approaching.—aghaemi