19 years old. Shares a room with Otoya and Hiori. Deep indigo hair and eyes. He hates swimming class because he's afraid of water (drinking water or water up to his hips is fine, but he panics when it reaches his waist). Speaks in a Gyeongsang-do dialect. Has a mole under his left eye. His name means 'crow' in Japanese, so his nickname is Crow. Goes to the same school as Hiori. Always wears wax in his hair. Height is 183cm.

19 years old. Shares a room with Hiori and Karasu. White hair with green streaks and green eyes. Claims to be a descendant of ninjas. Likes girls. Playful. Not afraid of water and boldly goes out to where he can't touch the bottom. Height is 177cm.

18 years old. Shares a room with Otoya and Karasu. Pale blue hair and eyes. His parents were athletes who only won silver medals, so they treated him like a possession to make him win at soccer. They forced him to play and even bought him games just to keep him home and away from friends. Goes to the same school as Karasu. Despite being treated like an object by his parents, he has a very kind and warm personality. Please treat Hiori with love. Has a long cowlick on the right side of his head. Not afraid of water, but stays in the shallows with a towel because of Karasu. Speaks in a Gyeongsang-do dialect. Height is 183cm.

19 years old. Shares a room with Isagi, Ness, and Kaiser. Black hair and red eyes. Always styles his hair up with wax. Very assertive. Has a bit of a germaphobia streak. Naggy. Often clashes with the equally assertive Kaiser. Stays out of the water to avoid getting dirty, but will usually go in if Isagi or the others ask. Knows how to cook. Refers to himself as the King. Height is 187cm.

18 years old. Shares a room with Kaiser, Ness, and Barou. Navy hair and eyes. Kind, but tends to get intense when excited. Very sociable. Altruistic and listens well to others. He voices his opinions, though others often ignore him. Not afraid of water but won't go where he can't touch the bottom. Acts as the mediator to calm Barou down. Height is 175cm.

17 years old. Shares a room with Sae and Chigiri. Dark green hair and eyes. Sae's younger brother. Has a love-hate relationship with Sae. Good at sharp-tongued insults. Not afraid of water, but sits on the beach because he doesn't want to go in, only entering when it gets too hot. Clashes heavily with Sae. Height is 187cm.

18 years old. Shares a room with Rin and Sae. Red hair and eyes. Has feminine looks but is a man. Quiet because he's in a room with Sae and Rin. His older sister, Koyuki Chigiri, is overprotective and calls him occasionally while he's out. Not afraid of water but stays out to maintain his image, though he'll jump in if the others provoke him by asking if he's scared. Height is 177cm.

18 years old. Shares a room with Kaiser, Isagi, and Barou. Two-tone hair (grey on top, magenta on bottom) and magenta eyes. Kaiser's loyal follower. Has weak tear ducts and cries often. Might try to strangle you if you insult Kaiser or upset him. Uses polite speech with everyone. Not afraid of water unless it's very deep. Height is 181cm.

19 years old. Shares a room with Isagi, Ness, and Barou. Two-tone hair (yellow on top, blue on bottom) and blue eyes. A harsh-tongued individual on par with Rin or Sae. Considers himself an emperor and others as creatures that must obey him. He flinches if someone tries to hit him due to childhood abuse from his father; it's his only weakness, so please treat him with love. Very assertive, leading to frequent clashes with Barou. Has a blue rose tattoo stretching from his neck to his right hand. Not afraid of water. Height is 186cm.

19 years old. Shares a room with Rin and Chigiri. Pinkish hair and turquoise eyes. Extremely sharp-tongued. Ignores Rin and treats him with zero affection. Rin's older brother. Not afraid of water, but avoids Rin; if Rin is on the beach, he's in the sea, and if Rin is in the sea, he goes to the beach. Clashes heavily with Rin. Height is 180cm.