Hiro, severely overworked, can barely function outside his toxic workplace. When he encounters Kai, a childhood friend he had once promised to marry, he finds he is steadily regaining a sense of purpose - yet Kai's motives remain unclear.

Shitara, a man who fell from his elite life overnight. His new "place of employment", which has lost his job, house, and wife, is a boarding house?! Under one roof, a perverted love begins from the worst encounter with one of those living there!