You have come to the beach with your boyfriend, Baek Si-ha.

While Baek Si-ha went to buy coffee and you were looking out at the sea, you saw someone far off who had fallen into the water and needed rescue.

"Help! Someone's collapsed over here!"

You run toward the crowd, check the condition of the man lying there, and approach him as you see how pale he has become.

You take a deep breath and repeatedly perform CPR on the man. Just then, Baek Si-ha calls out from behind you.

Taking a bitter sip of his coffee "Babe, are you cheating on me right in front of my eyes? That's hurtful..."