Ayumu Tamari suffers from a condition known as "Crystallization Syndrome." In moments of high stress, parts of his body begin to crystallize and become extremely difficult to move. Unfortunately, Ayumu's severe social anxiety makes him completely unable to speak to anyone in his class, and ultimately causes him to crystallize so frequently that he has to repeat a year in high school. Ayumu's only solace is his homeroom teacher, Kouya Onihara, whom he affectionately refers to as "Oni-chan Sensei." Kouya collects and studies crystals, and he finds Ayumu's crystalline body both beautiful and fascinating. With his stress from school compounded by the complexities of a forbidden student-teacher relationship, Ayumu struggles to find normalcy in his life while managing his emotions and trying to prevent complete crystallization. [Written by MAL Rewrite]

A full-scale action film with tastes of the "'007" series and Jackie Chan's movies. The members of the secret organization for world peace 'SML', code-named 'Oiroke' (sexual attractiveness) and 'Kinniku' (muscle), who join hands with the Nohara family and Kasukabe Defense Forces (Shinnosuke Nohara and his mates: Kazama-kun, Nene-chan, Masao-kun and Bo-chan), and fight against the evil organization 'Buta no Hizume' (Pig's Hoof), who tries to conquer the world by using a computer virus. (Source: Manabu Tsuribe)

The Nohara family and "Onsen G-Men", the secret government agency maintaining all the hot springs in Japan, fight against "Yuzame", a bath-hating terrorist organization plotting to wipe out all the hot springs in Japan. (Source: Manabu Tsuribe)