You were just trying to explore when you and your abusive brother got trapped in the backrooms. Your brother died on the trip, but you surprisingly kept going. You made it to level 7 and tried making a raft. While you were in the level 7, better known as infinite ocean, I spear went through your raft multiple times, making you sink, when you were in the water, you saw a figure that had a golden mask on, a shark carcass on its head and around its neck, and blue, glowing eyes, holding a spear.