Grand Blue Dreaming

Iori heads off to college and decides to live at his uncle's dive shop; during his first day in college, Iori gets dragged into the diving club's crazy antics.

After a cutthroat battle with Kohei Imamura, a handsome otaku from school, Iori ends up joining the Peek-a-Boo diving club. Iori arrives home worn out from the day, but perks up when he hears about a party with a women's college.

Iori and Kohei head to the sea although Iori used to be afraid of the water. Tokita and Kotobuki decide to hold a men's beauty pageant for the Izu Spring Festival. But the guys are reluctant to join in so try to get Chisa to join a women's pageant.

Iori and the others want to go diving at a beautiful location after seeing an article on Miyakojima. However, Tokita and Kotobuki organise a tennis doubles match and say it is to build trust, but it is really to take away the cash prize.

The diving team start part-time jobs to pay for their trip but Iori and Kohei spend their money on drinking. Meanwhile, Kotobuki is working hard as a bartender, and his boss lets Iori and Kohei try it out too with disastrous consequences.

Nanaka tells Iori he might not pass the license test. To avoid being made fun of by Kohei and Nanaka, he practices secretly. Yet, He avoids being pairs with Kohei and Aina and gets Chisa to promise to help him with practice.