Top-class Grim Reaper Lisara sneaks into the human realm and forms a temporary contract with the (un?)lucky letch Ryosuke Kaga as she searches for a singular person, an individual who possesses great spiritual power. On the hunt at Ryosuke's school, Lisara encounters and rejects the popular president of the boxing club, Hikaru Tamano. But the guy doesn't know how to take no for an answer! When he confronts the duo again, he knows about Lisara's circumstances for some reason, and his spirit energy is through the roof!!