When a chance encounter on a rainy day whisks high school student Usato and two classmates into a magical realm, Usato discovers his unique talent for healing magic. Despite being a reluctant participant, he finds himself in a whirlwind of bizarre adventures with a group of rescue team misfits, enduring their intense training program that teaches him the unconventional ways of healing magic. Brace yourself for a whimsical journey through a fantastical world, blending humor and battle in equal measure.