Chapter 1

Deep Blue (ディープブルー) is chapter 1 of Grand Blue manga.

Summary
The chapter opens with a girl in scuba gear swimming in the ocean

It's April and Iori Kitahara, who has just arrived in Izu, is picked up by his uncle, Toshio Kotegawa. They drive back to his uncle's diving shop, Grand Blue, where Iori will be staying while he attends university. Iori notices the girl from early emerging from the sea before turning to enter the shop.

Upon opening the door to Grand Blue, Iori is greeted by the sight of many naked, drunk, and heavily muscled men playing strip rock paper scissors. In shock he runs out of the shop, only to see two men chasing after him. They drag him back to Grand Blue only to show Iori some of the diving equipment.

One of the two guys introduces himself as Ryuujirou Kotobuki, a third year student at Izu University in mechanical engineering. He tries to recruit Iori to the diving club. The two meet Nanaka Kotegawa coming back from a test dive.

They return to the shop where Kotobuki and Tokita admonish Iori for complaining and then coerce him into drinking and playing strip rock paper scissors. Chisa Kotegawa returns to the shop where she sees Iori stripped down to his boxers chugging beer.

Iori's greeting to Chisa is rejected with extreme disdain. Kotobuki and Tokita promise to get Iori to his first class the next day on time.

The story cuts to Iori in a lecture hall and suffering from nausea and a hangover. A cute girl sitting next to him invites him to a party with her and her friends. However laughter and talking interrupts this dream and Iori awakens to find himself passed out nearly naked in front of the lecture hall.

Characters in Order of Appearance

 * 1) Nanaka Kotegawa
 * 2) Iori Kitahara
 * 3) Toshio Kotegawa
 * 4) Shinji Tokita
 * 5) Ryuujirou Kotobuki
 * 6) Chisa Kotegawa