Kasumi is suddenly hit by a car the night she runs away after killing her husband and her mistress. Yoichi, who was driving her car, tried to bury Kasumi, who was not moving, as instructed by her junior, Kamata, who was riding with her . was not dead. Yoichi invites Kasumi, who has nowhere to go, to her own house. From there, the strange cohabitation of a "murderer" and a "hit-and-run criminal" begins. Yoichi doesn't have a girlfriend or friends, and is always ridiculed by her juniors at work. The beautiful and free-spirited Kasumi was an angel who landed in his dull everyday life. On the other hand, Yoichi's simple kindness seemed like a faint ray of hope to Kasumi, who had fallen into an alcoholic after not getting along with her husband. Two people who depend on each other and drown in deep love. However, such a life would not last long, and ruin was creeping quietly, but surely, right next to them.