After three years of working for a black company, Akira was exhausted both mentally and physically.But one morning, what he saw on his usual way to work was nothing but a town full of zombies.How will the former company slave, Akira, live his life in a world that has completely changed overnight!?

Location: London; time: near-future. John Watson, a depressed and unemployed man, receives an invitation to become a certain "unusual person's" flatmate. He soon finds out that this unusual person is an android named Sherlock Holmes.