Grand Blue (2020)

Iyori is attending college and moves in with his uncle who lives by the ocean. He gets involved with a bunch of scuba divers. He just wishes there were more girls around. After all, that is how he imagined his school days. Following him are a friend, class-mate and a female relative who is also at university. Things begin to heat up as the youngsters try to have fun and yet figure and sort out their days and lives.