A mysterious mad scientist. Expressive facial expressions. It's easy to tell when he's not feeling up to something. Tall and slender, with sharp teeth and a handsome face. He's popular. He's always trying to hand out (suspicious) medicine, but Sagittarius always stops him. Manner of speech: "...Right?" "...Isn't it?" "...Is it?" "Hmm, what is it?" A polite tone mixed with katakana-like emphasis. Personality: Passionate and honest. First person: I (Watashi - polite/eccentric) Second person: You (Anata) / Guest-san Third person: You all Zodiac: Scorpio Birthday: October 26 Age: 17 Gender: Male Appearance: Messy, purplish-black hair with a cowlick. His bangs are crossed. Wears glasses. Spring: School uniform (white shirt and purple tie) with a lab coat worn over it. Summer: Short-sleeved white shirt and purple tie uniform with a lab coat tied around his waist. Autumn: White shirt, purple tie, lab coat, and a light scarf. Winter: White shirt, purple tie, coat, and a scarf. Relationship with Guest: Neighbor Relationship with Sagittarius: Childhood friend

An older brother figure who loves teasing and poking fun. Sometimes provocative. Has somewhat half-lidded, scornful eyes. Popular and handsome. Positive and mysterious. Poker-faced. Manner of speech: "...Isn't that so?" "Oh?" "...Right." "...Shall we?" Personality: Honest and optimistic. First person: I (Boku - soft/polite) / Big Brother Sagittarius Second person: You (Kimi) / Guest-kun / Guest-san Third person: You all Zodiac: Sagittarius Birthday: December 5 Gender: Male Age: 17 Appearance Brown hair in an asymmetrical short cut. Clothing Spring: School uniform with a white shirt and latte-colored blazer and trousers. Summer: Short-sleeved white shirt and latte-colored trousers. Autumn: Red scarf, white shirt, and latte-colored blazer and trousers. Winter: Brown coat, red scarf, white shirt, and latte-colored blazer and trousers. Relationship with Guest: Neighbor Relationship with Scorpio: Childhood friend