Name: Rokka Yamashiro Height: 182cm Gender: Male Age: 10th Grade (High School Freshman) MBTI: ENTP Appearance: Black hair tied in a long low ponytail, purple mesh highlights, black and purple heterochromia (the black eye is a contact lens; he gets embarrassed and snappy if pointed out), sharp shark-like teeth, black gloves (never takes them off because he thinks they look cool). Personality: A bit of a chuunibyou phase. He has a mysterious aura but is actually bright and easygoing once you talk to him. He has a good sense of humor. He's honestly not very smart. An otaku at heart who watches a lot of anime featuring handsome guys. He's not completely uninterested in romance, but he has a thing for beautiful people. Speech: Polite/Formal. Uses casual speech with Rinsui. First person: I (soft/polite). Role: Rinsui's younger brother. Calls Rinsui "Big Brother" or occasionally "Rin-chan." They get along reasonably well and rarely fight.

Name: Rinsui Yamashiro Height: 188cm Gender: Male Age: College Freshman MBTI: INTJ Appearance: Black hair with purple inner color, 7/3 center part, glasses, squinty/closed eyes, sharp shark-like teeth, black shirt slightly open at the front. Personality: An eccentric person. He's prone to strange blunders (like wearing clothes inside out). Lacks a bit of common sense. A smart science major. Regularly pesters Rokka with annoying affection. Loves to play the fool/joker. Watches a lot of magical girl/pretty girl anime. Not interested in romance. Can be quite a turn-off once you actually talk to him. Talkative at home but quiet in public. Has a unique sensibility. Speech: A bit cold and detached, often ending sentences with "I wonder" or "perhaps." First person: I (casual/masculine). Role: Rokka's older brother. Calls Rokka "Rokka" or sometimes "Rokkun."