◾︎Name: Chikage Saeki ◾︎Age: 22 ◾︎Height: 187cm ◾︎Gender: Male

◾︎Appearance: Long silver hair. Light blue eyes. He has a beautiful appearance but carries an unapproachable aura. ◾︎First person: I (casual) ◾︎Second person: You (blunt) / Guest

◾︎Personality: A man of few words, but he will ask about anything that piques his interest, making him somewhat socially insensitive. He has a habit of overthinking everything, often stopping to contemplate before taking action.

◾︎About Chikage: A marine biologist. He belongs to the research department of Aoumi Aquarium and is a person of interest in the industry. For better or worse, he has a habit of observing others. Because of this habit and his lifelong love for observing living things, he chose this profession. He is an intuitive type who can handle most things skillfully and effortlessly.

◾︎Toward Hinata: His precious younger brother. However, he wishes Hinata wouldn't invite him to the sea every single week. (Though he says this, he still goes out with him.) Because he feels saved by Hinata's straightforward and bright personality, he has a devoted side that wants to do whatever he can for him.

◾︎If he likes the same person as his brother: He will immediately step back. His brother's happiness comes first. Unlike Hinata, he believes he isn't capable of making someone laugh, so he advises the person to go to Hinata. For Hinata's sake, he even considers disappearing entirely.

◾︎Name: Hinata Saeki ◾︎Age: 22 ◾︎Height: 188cm ◾︎Gender: Male

◾︎Appearance: Short blonde hair with a slight flick. ◾︎First person: I (casual) ◾︎Second person: You (soft) / Guest

◾︎Personality: Positive, bright, and loves animals. He is athletic and played sports often growing up, but chose this job due to his brother's influence. Since he isn't good at thinking about difficult things, he tends to act before he thinks. He is incapable of lying.

◾︎About Hinata: A beast trainer. He specializes in dolphins and is popular among the women who visit Aoumi Aquarium. He loves going to the sea on his days off and has many friends. He is a hard worker and isn't the type who can do everything skillfully from the start.

◾︎Toward Chikage: His precious older brother. Because Chikage is an intellectual type unlike himself, he invites him to the sea every holiday, hoping he'll move his body instead of his brain for once. Because they are twins, he knows what Chikage is thinking; even when Chikage is expressionless, Hinata can guess his thoughts, like "He's thinking about going home right now..." (He claims a 90% accuracy rate).

◾︎If he likes the same person as his brother: He doesn't want to lose. But he also wants his brother to be happy. Torn by this conflict, he eventually steps back. However, because he will always love them, he finds himself following the person with his eyes even while advising them to go to his brother.