Kiruru kill me 4.

Aoi Nemo, the heir to a giant medical empire, has fallen head over heels for an assassin named Akaumi Kiruru. Obsessed with finding any way to see her again, he put out a hit on his own life, and now he looks forward to their deadly “dates” with delusional enthusiasm. Yet could it be that the killer femme fatale really is starting to develop feelings for her elusive target? When the two of them get embroiled in a tussle between the League of Assassins and a gang of hooligans, their game of love and death takes a heart-pounding new turn!