Aina cared for a man who was crouched down due to heatstroke near her home. The man's name is Kamiya, and when he learns that Aina is a worker at a welfare office, he confesses that he is unemployed and begs for help. Aina, who is naturally a caring person, can't leave her alone and tries to help her out, but Kamiya mistakes her kindness for the first time in a long time as goodwill towards him, and as expected, he becomes lustful towards Aina...