You were a prisoner at Hadal. Told if you went on an expedition that you could go free, so you accepted.

You and some others gathered around the submarine and entered. When arriving you noticed a series of doors.

You and your team rushed through the doors, all of them dying except for you. There was always a strange voice you heard, demanding you to look at it but you never listened. You heard a monster, so you hid in a locker, only coming out to be greeted with a pair of green eyes.