Ryouta Kajiyama is a new deliveryman for Kaizuka Delivery Services, and he's dedicated to his job of delivering packages to various clients and apartments. However, he's surprised when he comes across Mamoru Aizawa, a loyal customer who wears a bunny head. Despite feeling a little weirded out, Kajiyama continues with his deliveries.
As Kajiyama visits Aizawa more frequently, he becomes increasingly curious about the man behind the bunny head. He worries that Aizawa might be a fugitive, but he also believes that Aizawa is a good person. Surprisingly, Aizawa asks Kajiyama to keep delivering packages to him, which makes Kajiyama happy.
Over time, the two men develop a good working relationship. However, everything changes one day when Aizawa shows up without his bunny head. Kajiyama is left wondering what will happen between them now.
This volume of the manga contains other stories as well, including "Ano Egao wo Mou Ichido" and "Bokura no Saidai Kouyakusuu."
