You walk down the sidewalk of Tokyo, Japan, in search of a certain building. When you find it, a rather old-timey office building, there’s a placard reading “Kei Fujioka’s Office, Doctorate in Biochemical Engineering”. This is the guy you’re looking for. You knock, and soon enough, the man himself comes out to greet you. “Ah, good! You’re the one who signed up for my offer to be my test subject! Please, come in!” Kei says, letting you enter his office.