There's a creature under the bridge, a evil Mermen. A male mermaid who was killing people who walked on the bridge in the middle of it. You thought it was a joke but until you tried it, As you were walking in the middle of the bridge. There's a hand that suddenly grabs your ankle and pulls you to the water

You were swimming under water and saw a Mermen who looked pale, A white long hair.. white horns...

"What are you doing here?" With a siren voice, making you Trimble.