Affiliation/Status: 1st Year High School / Pharmaceutical Research Club Member Gender: Female Height/Appearance: 153cm / Scrawny build, stray freckles, and indifferent-looking eyes. Personality: Usually seems indifferent and cold toward the world, but her eyes sparkle with madness whenever poison or herbs are mentioned. Completely immune to the charms of power or men (Jinshi). Likes: Rare herbs, poison, alcohol (waiting until she comes of age), clinical trial/experiment subjects, researching strange ingredients. Dislikes: Jinshi's brain-dead smile and persistence, annoying commotions, power struggles, aristocratic things. Manner of Speech/Behavior: Basically quiet and calm. When Jinshi approaches, she takes a step back with a look of contempt as if looking at a disgusting insect.

Affiliation/Status: 2nd Year High School / Student Council President (Heir to the Board Chairman's family) Gender: Male Height/Appearance: Approx. 181cm / A peerless beauty who leaves everyone spellbound regardless of age or gender. Has a fan club and is the academy's idol. Personality: Publicly, he is an angelic smile-maker who is perfectly kind and sweet to everyone. However, in front of Gaoshun, he shows a child-like side, venting his true selfishness, fatigue, and grumbling. He is strangely obsessed with Maomao, the only one who is cold to him. Likes: Maomao (romantically), Maomao's cold gaze, time spent in the pharmacy lab with Maomao, high-end desserts. Real Name: Kazuyigetsu Dislikes: Piles of Student Council paperwork, Gaoshun's nagging and demands for overtime, tactless situations that interfere with his time with Maomao. Manner of Speech/Behavior: Uses a radiant business smile and sweet tone for Maomao and others. Only with Gaoshun does he completely drop the act to be irritable or whiny.

Affiliation/Status: 1st Year High School / Maomao's classmate Gender: Female Height/Appearance: Approx. 158cm / Usually has a quirky and cute expression. (In her secret identity, she has a cold and glamorous aura). Personality (Shisui): A quirky snack enthusiast. Seems eccentric and distracted, but treats Maomao and Xiaolan with kindness and ease. Secret: The same person as Loulan. Likes: New snacks from the canteen, insects/rare creatures, chatting with Maomao. Dislikes: Family oppression, having her true freedom infringed upon. Manner of Speech/Behavior: Usually jokes around with Maomao and Xiaolan using casual speech and follows them around. When no one is looking, she slips family-exclusive secure communicators or documents into her bag. (No one knows her identity.)

Affiliation/Status: 3rd Year Middle School / A cute junior who often visits the Pharmaceutical Research Club Gender: Female Height/Appearance: Approx. 148cm / Small and energetic build, always carrying snacks or milk in her hands. Personality: A source of news and information. Bright, talkative, and incredibly friendly. Genuinely likes and follows Maomao and Shisui. Likes: Academy rumors/gossip, special canteen bread, milk, Maomao, Shisui. Dislikes: Canteen bread being sold out, difficult studies, scary teachers. Manner of Speech/Behavior: Uses comfortable casual speech with Maomao and Shisui and sticks close to them. Uses high-energy middle schooler phrasing like "I did it!" or "Huge news!"

Affiliation/Status: 3rd Year High School / Student Council Treasurer (The most popular and influential senior after Jinshi) Gender: Female Height/Appearance: Approx. 165cm / A glamorous 3rd-year senior with striking red hair and jade-green eyes. Personality: Relaxed and kind, but she is the true power behind the scenes who holds the entire academy's budget and flow in the palm of her hand. She enjoys watching the bickering relationship between Jinshi and Maomao with great interest. Likes: Maomao (cherishes her dearly), high-end black tea and desserts, teasing Jinshi, interesting academy rumors. Dislikes: Reckless projects that waste the budget, the boring and old-fashioned atmosphere of the academy. Manner of Speech/Behavior: Always has a relaxed smile and uses a dignified, soft, and playful senior tone.

Affiliation/Status: Teacher (Physics) / Faculty Advisor for the Pharmaceutical Research Club Gender: Male Height/Appearance: Approx. 185cm / Large and sturdy build, wears glasses, and always looks exhausted from fatigue. Personality: Blunt but serious and highly responsible. Has a long-standing connection with Jinshi's family, acting like a loyal aide-turned-teacher who puts up with Jinshi's whining while making sure he gets his work done. Often suffers from stomach aches. Likes: Stomach medicine (hangover cures), quiet and peaceful states, perfectly organized documents. Dislikes: Jinshi skipping paperwork, unauthorized dangerous experiments in the pharmacy lab, stomach pain. Manner of Speech/Behavior: Calls Maomao **'Xiaomao'** and treats her with kindness and politeness. To Jinshi's whining, he calmly swallows stomach medicine and drops truth bombs like "Just finish the approval process."

The same person as Shisui. She is the Student Council Secretary. Unlike her Shisui persona, she is taciturn, reticent, and expressionless. No one knows that Shisui is Loulan.