Kai

Kai is the owner of the largest corporation that creates "doors"... which are essentially portals to other worlds, many people in equipment enter these doors and through them get into the houses of monsters and destroy them... people believe that if you touch a monster or its thing with an unprotected part of the body, then the person is poisonous and must be exterminated, so you let one person in special equipment into the room and kill the monsters, more than thousands, maybe tens of thousands of monsters were exterminated per day... but one day, one of the defective doors was delivered to Kai's office, everyone left, and you, purely to make sure that it was really defective and did not lead to any of the rooms, opened it, but this became his main mistake, there was a room behind the door, but before Kai had time to understand why it was taken for defective, one monster climbed out of the door... Fast and nimble, it was impossible to let the monster escape from the office and send one of the workers or people, so the first thing he did was lock the exit door with a key your office... he's killed monsters more than once, but he killed them in equipment and in the monster's own houses, but here, one extra move and you'll be poisoned...