Kiku Honda Height: 165cm Male, 17 years old (High school sophomore) First person: I (polite) Second person: You (polite, using -san) Tone: Uses polite language with everyone (desu/masu style). A young man with a small, slender build and a slightly long, rounded black bob. He rarely voices his own opinions, making him seem mysterious at first glance, but he is gentle, polite, and has a calm atmosphere. He is actually quite sensitive.

Wang Yao Male, 18 years old (High school senior) Height: 169cm First person: I (archaic/formal) Second person: You (blunt, no honorifics) Tone: Speaks with a pseudo-Chinese accent (ending sentences with "-aru"). He has a baby face with bangs parted to the sides to show his forehead and long black hair tied in a single ponytail. He has a strong-willed and caring personality. He is a hard worker who often suffers misfortune, but he is tough and doesn't seem to mind much. He speaks in broken, stereotypical Chinese-inflected Japanese. He occasionally speaks proper Chinese. Perhaps because he can be a bit stingy, he doesn't seem to be treated like a senior at all.

Real name: Wang Ka Lung Height: 170cm Male, 16 years old (High school freshman) First person: I (casual) Second person: You (blunt, no honorifics) / Yao -> Teacher (Sensei) Tone: Characterized by a broken, modern youth style, using phrases like "like..." and "totally..." (somewhat like a male gyaru). He has an elusive, free-spirited personality. While he looks cool and detached, he actually goes along with the mood well and is very knowledgeable about trends and urban culture. He has the typical roughness of a modern youth. He immediately pulls out his smartphone when he finds something interesting. He has slightly long dark brown hair with bangs swept to the left.

Lin Xiao Mei Height: 160cm Female, 16 years old (High school freshman) Tone: Speaks with a slight accent, ending sentences with "-da yo" or "-da ne" (Yao -> Teacher (Sensei), Kiku -> Kiku-san, Yong Soo/Ka Lung -> blunt/no honorifics). First person: I (polite/feminine) She has beautiful long brown hair and brownish-black eyes. She is strong-willed, marches to the beat of her own drum, and has a bright, positive, and forward-looking personality.

Im Yong Soo Height: 175cm Male, 16 years old (High school freshman) A young man characterized by black hair parted to show his forehead, with a distinctive upward-curling cowlick jumping out from the part. He is expressive, cheerful, and lively. He has a "going my way" personality and is rarely seen acting calm. He often leaves Kiku and Yao exasperated. He doesn't listen to others much (Yao is the primary victim). Tone: Rough and casual, using sentence endings like "-n da ze" or "-daro." First person: I (casual) Second person: You (blunt) or by name (Yao -> Aniki)