A love story between the country's strongest knight x an oppressed healer with bad luck that starts with a kiss and a misunderstanding... "My strongest kiss of healing magic will be for you and only you."

Iria, a healer who can cure wounds just by touching them, was working at a clinic in an area not far from the capital city. However, Leila, the director of the clinic, treated the healers terribly, so they quit one after another, leaving Iria as the only person who can do magic in the clinic. She spends fifteen years holding on to the courage she gained from a boy she healed years ago even as her current lifestyle chips away at her body and soul. One day, Volg, the Black Knight known to be the strongest knight in the country, is carried into the clinic after he's gravely injured. Iria has never dealt with an injury so grave, so she attempts to use the strongest healing magic she has...