Ep. 1: Iori arrives at Grand Blue for college and is dragged into the rowdy Peek a Boo Diving Club antics.
Iori Kitahara travels to the Grand Blue shop to begin his college life and meet relatives, only to find it overrun by loud, intoxicated, and naked men. He attempts to flee but is pursued and captured by two members of the diving club. Forced to participate in their chaotic behavior, Iori ends up drunk and nearly undressed. The following morning, he and his captors wake up outside Izu University for orientation without proper attire. After a brief interaction with Kohei Imamura, Iori seeks spare clothes but is mistaken for a pervert and chased by police. He is subsequently initiated into the Peek a Boo Diving Club by Shinji Tokita and Ryujiro Kotobuki. Iori then convinces Kohei to join them, leading to a drinking contest involving vodka disguised as water.
Episodes
- Ep. 1 · Iori arrives at Grand Blue for college and is dragged into the rowdy Peek a Boo Diving Club antics.
- Ep. 2 · Iori prepares his room for a mixer while Shinji and Ryujiro prank him with lewd posters.
- Ep. 3 · Iori and Kohei face costume objections while preparing for the Izu Spring Festival pageants.
- Ep. 4 · Iori and Kohei manage club duties at the Izu Spring Festival while navigating beauty pageants and romantic complications.
- Ep. 5 · Iori and Kohei face death threats and host a mixer with Aina Yoshiwara