"You have the right to choose your own death." In the near future, the Volitional Death Act is established. Fed up with her circumstances, Minori contacts the Special Public Welfare Organization O.F.F. and applies for their Death-on-Demand plan. With no one she cares enough about to notify of her decision, and nothing to leave behind, Minori only wishes that her fated day would arrive sooner. But as she continues meeting with her incredibly perky agent Mido to iron out the details, something gradually begins to shift within her.

Dogs are the closest human partner. However, there are some dogs that do not have owners for various reasons ... Fuko, who is a little clumsy, has helped the unhappy dogs find foster parents for some reason. Fuko's reliable ally is Riku, a MIX dog. The struggle of two-legged race (?) To wish the happiness of all dogs has begun!