Spelunker Sensei

(Esta sinopse está em inglês. Ajude a comunidade traduzindo!)

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There's a new teacher in town—Spelunker! This unusual man is anything but a typical instructor, giving speeches about traffic safety to the students, reacting strangely to a humidifier, and enjoying lunch— albeit with ample condiment mishaps. With such a bizarre new role model to learn from, Spelunker's students will never be the same!

(Source: Anime-Planet)