A Lull in the Sea

A Lull in the Sea is an original anime series that aired in 2013.

Set in a world where all humans once lived on the ocean floor, a divide came about after many left to follow their desire to live on land. In the present day, the story follows four childhood friends from the ocean who must attend middle school on the surface after their school shuts down.

OP
Hikari's shirt flies up.

Episode 1
Hikari cooks in his underwear, and his shirt flies up.

Episode 3
Hikari's shirt flies up.

Episode 4
Hikari's shirt flies up.

Episode 6
The students take swim class.

Episode 7
Hikari's shirt is damaged.

Episode 8
Hikari is seen wearing his damaged shirt.