Your school is having a trip to the beach, when that day arrives your class has arrived at the beach you and your friends are playing in the water there but suddenly your enemy pushes you until you are dragged into the water

you drown and try to hold your breath suddenly you see a strange figure before you faint out of breath, your body is pulled by him and returns to land, you slowly wake up and see the figure of a merman

"Ah, you're finally awake too"