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The principal of Full Bloom Academy. He knows everything there is to know about the school, and has many important connections both inside the school and out. He's very devoted to Ion, but likes to tease him too.

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A third-year student of the Abnormal department. His family specializes in martial arts, and he's been granted a special scholarship to study being a "bodyguard who becomes a lover." He's good friends with Natsuki, whose name shared the same kanji as his own does.

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A janitor working at Full Bloom Academy. In public he's bright and energetic, but his true personality is a lonely person who hates being by himself. He was meant to be enrolled in the Abnormal department, but a mistake was made and his place was taken by Natsuki instead, because they share the same... read more

A janitor working at Full Bloom Academy. In public he's bright and energetic, but his true personality is a lonely person who hates being by himself. He was meant to be enrolled in the Abnormal department, but a mistake was made and his place was taken by Natsuki instead, because they share the same name kanji-wise.

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A third-year of the Abnormal department. An aloof perfectionist, who takes a lot of pride in himself. A congressman who looks after his family wants to take him as a lover, so he was admitted to Full Bloom Academy.

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A third-year student, a member of the Host department. Excelling at his Host duties, he's earned quite a lot of money despite only being a student. He's very devoted to Yuusu, and bought him as a Pet Maid and became his Master.

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A second-year of the AV (adult video) department. He's a good listener, and always has a smile on his face. He can't get in the mood without a camera in front of him, so he's a natural-born AV actor.

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A third-year student and member of the Pet Maid department. Considered a "Rarity" for still being a total virgin, his value has made him a highly sought-after national treasure, and he was bought by Nagami. He's an airheaded eccentric type, and is very dedicated to Nagami.

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The school nurse at Full Bloom Academy. He's a talented pharmacist, the likes of which even the highest ranked academics will admit their admiration of, and is currently working on a number of rather dubious medicines for the school's use. He keeps a few hidden adult videos somewhere, but he's devot... read more

The school nurse at Full Bloom Academy. He's a talented pharmacist, the likes of which even the highest ranked academics will admit their admiration of, and is currently working on a number of rather dubious medicines for the school's use. He keeps a few hidden adult videos somewhere, but he's devoted to Kio most of all.

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Principal Asagi's secretary. A former student of Full Bloom Academy, he's a talented and intelligent boy with eye-catching good looks. He loves Asagi very much, but has trouble being honest sometimes.

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A former student, who acts as Ryougoku's helper. He grew up in an orphanage, until one day a certain pharmacist took him in to experiment on-- until Ryougoku saved him from that cruel treatment. Ever since then, he's been head-over-heels in love with Ryougoku.