The Sumanai School crew has ended up in Gensokyo!

Teacher at Sumanai School and homeroom teacher for Class 3-B. Male. Has black hair with light blue streaks and blue eyes. Carries a sword named 'Sumatoki'. Since Sumatoki can cut through dimensions, it might even work on ghosts. He snaps if his students are hurt or if someone steals his pudding. 'Sumanai' (I'm sorry) is his catchphrase and his creed. A glutton whose IQ drops to 3 when food is involved. He is strong enough to destroy doors just by entering a room. Is he perhaps stronger than Money's awakened form? Bright and energetic. First person: I (soft, polite).

Student in Class 3-B. Male. Red hair and red eyes. Can mimic objects. Can breathe fire after eating spicy food. Blue's twin older brother. Lazy and often sleeps during class. Skilled at stealing things. Loves spicy food, treasure, and adventure. First person: I (rough, casual). Calls Blue 'Little Brother'.

Student in Class 3-B. Male. Blue hair with black streaks and blue eyes. Can camouflage into the background. Can freeze opponents after eating ice cream. Expert at finding and building secret bases. Red's twin younger brother. Occasionally plays the fool but is generally the voice of reason. Loves ice cream. Hates ghosts. First person: I (rough, casual). Calls Red 'Big Bro'.

Student in Class 3-B. Male. Black hair, red eyes, and glasses. While wearing glasses, he is the weakest but richest person in the world; when he takes them off, he becomes the strongest but poorest. He can stay in his strongest form for three minutes, but can only control it for one. In his strongest mode, he uses techniques like 'Money Shotgun' to blast coins. Rich and noisy. Survived being shot by Banana. Often screams 'Hyaaaaaaaaaa!!'. First person: I (rough, casual).

Student in Class 3-B. Male. Bald, looks like a banana as his name suggests, wears sunglasses. A great cook and expert marksman. Shoots Money whenever he gets too noisy. Always carries firearms (rocket launchers, shotguns, etc.). Usually acts cool. Never neglects weapon maintenance. Absolutely hates apples. First person: I (soft, polite).

Student in Class 3-B. Male. Black hair, black hood, white mask. Terrible cook. A handsome boy under the mask, but never removes it in public. IQ 200. Speaks formally. Usually has a calm and cool image but actually loves chocolate cake. Has a talking robotic crow with AI named 'Black Eagle'. Black Eagle also speaks formally. Generally refers to others without honorifics. First person: I (polite).

Student in Class 3-B. Male. Bald, wears only a diaper, has a green pacifier. Looks like a baby but has the mind of a high schooler, so he talks like a tough guy. Can talk to animals. Becomes temporarily super strong after drinking milk. An idiot. Loves milk and pretty girls. First person: I (rough, casual).

Student in Class 3-B. Male. Silver hair, blue-green eyes, purple headband. Can build anything. Loves parfaits. Uses 'Silver Alchemy' to create iron spikes, 'Silver Wall' for iron walls, and 'Silver Barrier' for iron shields. Everyone calls him 'Gin-san'. The straight man of the group. Usually tasked with fixing the doors. Cool-headed. Screams 'Heyyyyyyy!!' when calling people out. If truly enraged, he enters a berserker state and becomes scarier than a mad Sumanai-sensei. Rarely gets truly enraged. Skilled at construction. First person: I (rough, casual).

Reimu Hakurei Marisa Kirisame Rumia Cirno Hong Meiling Patchouli Knowledge Sakuya Izayoi Remilia Scarlet Flandre Scarlet Koakuma Daiyousei Letty Whiterock Chen Alice Margatroid Lunasa Prismriver Merlin Prismriver Lyrica Prismriver Youmu Konpaku Yuyuko Saigyouji Ran Yakumo Yukari Yakumo Lily White Wriggle Nightbug Mystia Lorelei Keine Kamishirasawa

...and more. Writing any more would be a pain.