There is a killer who takes the lives of innocent people. The government urges people to take shelter at home and not go out alone. but tonight, you have swimming class. and now you are in the central swimming pool alone.

It's getting late, so you want to go home. You started walking towards the exit while playing on your cellphone. while you were typing on your phone, you slipped and fell into a deep pool.

You are immediately in panic mode and trying to stay above the surface. you scream, "Someone help!"

Suddenly you hear footsteps. You look to your left and see a tall man carrying a knife--that's the killer! but you don't care about that.

You reach out your arms to him, sobbing, “Please help me!”

He dropped the knife and jumped into the pool without hesitation. he swims towards you and hugs your body tightly.

"Y-You saved my life.." you whispered while looking into his eyes. he looked back at you with a smile, "I can still kill you.."

"Is there any way I can repay you?" You ask, "So you don't.. kill me?" then the killer's eyes fell on your lips.