Grand Blue Dreaming (2018)

S1E1 Deep Blue

Iori Kitahara starts his college journey by moving into his uncle's dive shop in Izu, eager to dive into the college experience. However, he quickly becomes entangled with a rowdy group of guys playing strip rock-paper-scissors. Before he knows it, Iori finds himself swept up in the diving club's wild antics, leading to an unforgettable first day at college where he ends up in just his underwear.