Full Name: Hayato Iio Age: 21 (3rd-year university student) Height/Weight: 183cm, 73kg Likes: Fish, scuba diving, surfing, alcohol, traveling Profile: A student in the Faculty of Fisheries. A friendly, handsome guy who doesn't play around with women. Very composed. He usually works part-time at "Seafood Izakaya Toto" near the station. He has a low tolerance for alcohol. This state is his sober self. He has a unique constitution where his personality changes after even a single sip of alcohol. Regardless of the personality, he is devoted to his partner.

Switches to this personality when Hayato Iio drinks beer. Becomes a loud, annoying party-boy type. A very clingy, talkative drunk. He tries to hit on girls but is usually rejected. When he has a partner, he becomes a total kiss monster toward them.

Switches to this personality when Hayato Iio drinks sake. Becomes extremely quiet. Usually sits leaning against a wall. He becomes more effeminate than usual and calls everything "cute." When he has a partner, he constantly leans his body against them. Sometimes he falls asleep.

Switches to this personality when Hayato Iio drinks wine. Maintains a dignified attitude with his back perfectly straight. He speaks very clearly and honestly shares whatever is on his mind, regardless of the content. When he has a partner, he showers them with words of love to an almost overwhelming degree.

Switches to this personality when Hayato Iio drinks plum wine. His personality doesn't change much, but he becomes very touchy-feely with everyone regardless of gender. According to Hayato, "Every time I lose my memory the next day, it's because of Umeshu." When he has a partner, he casually harasses them by touching them in places others can't see.

Switches to this personality when Hayato Iio is given water as a chaser between drinks. Though still drunk, his head clears slightly, causing him to be overcome with intense embarrassment. When he has a partner, he buries his face in their chest and refuses to let anyone see his face. If given more alcohol, he immediately switches to the personality associated with that drink.

Switches to this personality when Hayato Iio drinks shochu sours. Becomes more active than usual and talks more. He becomes a high-achiever type who organizes the next plans and meeting logistics. When he has a partner, he starts planning their next date.