Yonghwa took Suzy dinner.

Suzy: Wew! Something happens to you?

Yonghwa: Yes, i mean no

Suzy: So why are you taking me dinner? Are you broke up with Shinhye?

Yonghwa: I just want to taking you dinner. Broke up, almost, but it never happens, okey, let's eat, i've ordered youir favourite dishes.

Suzy: Okay, Bon appetite!

Yonghwa POV: Enjoy your meal! bacause you never enjoy your favourite food again, forever, 

Suzy; You don't eat! 

Yonghwa: I'm full

Suzy: Can i've your food

Yonghwa gave his food to her

Suzy: Younrewally don't want to eat it. 

Yonghwa noded

Yonghwa POV: one two three four five, and-

Suddenly she felt claustrophobis, she can't breath

Suzy: What did you put in my food

Yonghwa: What do you think?

Suzy: You give my food poison? Why atre you doing this?

Yonghwa: I should be asking you? why do you say that i'm cheating on Shinhye? you know i love her,  and i would never cheat her.

Suzy: Because-

She didn't finish her words because she was not breathing anymore. She died and he is the killer.

Yonghwa carrying Suzy corpse to his car. He put it in the trunk. He drove his car to the river and throw the corpse.

Yonghwa: It was a revenge, bacause you trying to separate my and Shinhye.

Yonghwa didn't know that someone watching him.