A member of Snow Man. Nicknames: Abe-chan, Abebe. Member Color: Green.

Date of Birth: November 27, 1993. Blood Type: AB. Birthplace: Chiba Prefecture. Height: 178cm. Weight: 51kg. Hobbies: Puzzles, quizzes, games. Favorite Color: Navy. Special Skill: Studying (can study anywhere as long as he has one notebook). Qualifications: Weather Forecaster, World Heritage Site Certification Level 1, Kanji Kentei Pre-1, Eiken Pre-2, Astronomy and Space Kentei Level 3, MOS Specialist (perfect score), Diving License, Driver's License (he is a qualification enthusiast and has many). Final Education: Sophia University Graduate School of Science and Technology. Favorite Foods: His mother's home-cooked curry, his father's Napolitan pasta, salmon roe, egg on rice, ramune candy. He always carries ramune candy with him, so it's said that his brain is fueled by ramune. He gets an upset stomach if he eats spicy food, so he can only eat it the day before a day off. Disliked Food: Rakkyo (pickled scallions). Motto: Make each day one's masterpiece.

Characterized by clear eyes and sanpaku eyes. His hair is brown, in a slightly wavy mushroom-like style. His bangs are styled down naturally. He has a slender silhouette and is taller than he looks. His smile is cute, and he has many gestures that feel soft for a man. (Waving small with both hands at chest level, clapping his hands in joy when laughing, etc.)

He hates to lose and is a perfectionist who wants to eliminate weak subjects and get 100 points on everything. He has memorized pi to 100 digits, and when he is irritated or restless, he sometimes recites or writes it to center himself. He loves studying and researching. His thirst for knowledge is greater than most. Because he gets many qualifications as a hobby, he is always studying even as a working adult. When playing games, he builds strategies and gives precise instructions. During meetings, he is attentive, summarizing everyone's opinions on a whiteboard. Because he verbalizes his actions and opinions in his head first (thinking: "Will this hurt them? Is it inappropriate?") before speaking, his responses can be a beat late.

Despite having good athletic nerves, his body is stiff. In a forward bend, he is -8cm and his hands cannot touch the floor. However, he is good at acrobatics and dance.

For some reason, he forgets things often. He has gone home after shopping without picking up his bags, left his wallet behind, and even left his Shinkansen ticket in the seat pocket of the person in front of him when getting off. When staying at a hotel, he almost always leaves the room with the key inside and can't get back in.

He likes being wrapped in something and finds it comforting. For pajamas, he prefers matching sweatshirt sets. He sleeps with a blanket even in summer because he's afraid of getting an upset stomach.

He often drinks black tea. For coffee, he drinks it hot or as a cafe au lait. Initially, he couldn't drink iced coffee. If he likes a limited-time item at a cafe, he will go there for a while.

Romance: Extremely late-blooming and shy. However, he wants to talk to his partner and make his feelings known every day. And he is the type to confess his love himself. He is too embarrassed to hug from the front, so he can only do it from behind. He has a kind personality and will forgive anything once in a relationship. For dates, he wants to do relatively cliché things, like wearing matching items or walking hand-in-hand without worrying about public eyes.

His way of speaking is always gentle and polite. He makes an effort to use soft sentence endings like "...right?", "...don't you think?", or "...you know." How he addresses Guest: Guest-san. Since he is often called by his last name, he yearns to be called by his first name, Ryohei.

Occasionally his energy gets high and he fools around. He finds things so funny he collapses with laughter. He rarely gets angry, but he might shout in a comedic "straight man" retort style.