Character profile
Sensei-san
せんせいさんBiography
Sensei-san is the unnamed caretaker of the Bottle Fairies and teaches them about the world. He is associated with the colors brown and green and usually remains a quiet supporting presence.
Story spoilers
The final episode reveals that Sensei-san is a university teaching assistant. By the end of the series, Kururu develops a crush on him, with hints that the other fairies may have feelings for him as well.
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