The body is a musical.

Suzuki Shizuka is an office lady at a conglomerate who is hypnotized at a local amusement park and left under the spell. Now she is compelled to sing and dance whenever she hears any melody whatsoever. She heads back to the hypnotist for relief, but he is nowhere to be found. So Shizuka sets off on a journey around Japan to find him and break the spell.