Komikaze: First Thread

A young man , Keisuke Minami , wakes up and finds himself in a huge building connected to 3 other buildings by the terminal. The buildings itself are supported with pillars to keep above the water in the middle of the vast ocean. Luckily , he's not alone since there's a lot of people in the building he's in. So , he decided to investigate this mysterious world and find out the truth behind his existence.