Help the wrong pervert and the ending

Aina took care of a man squatting near the house suffering from heatstroke. The man's name was Kamiya. When he learned that Aina was an employee of the welfare office, he confessed that he was unemployed and asked for help. Aina, who has always cared about her, cannot leave her alone and asks for advice, but Kamiya, who misinterpreted the kindness he was touched for a long time as kindness to himself, suddenly born desire for Aina…