there's something weird going on

in the year 2021 there was a virus the killed millions of people, people believed that that was the end of the world but little did they know it was only the beginning, a man named dae-jung and his girlfriend seo-jun was watching the television in their house.

seo-jun went to get a glass of water. a couple minutes passed and she still hasn't returned, dae-jung was getting worried so he went and checked, when he got to the kitchen he saw his girlfriend standing still and looking at the corner, when he goes to see her she has food in her hand and her eyes was white like pearls, blood suddenly flowed out her ear.

dae-jung was getting worried so he tried to shake her, when he was shaking her, her phone dropped out of her pocket showing another man on her wallpaper, he quickly checked who it was and saw a video of them having sex, dae-jung's heart was broken to pieces that he killed himself.

baek-hyun(baek-hyun is dae-jung's best friend) showed up and saw them lying in the floor dead, baek-hyun screamed and their neighbors heard it and quickly rushed over, the police came and asked baek-hyun "what happened to them?" beak-hyun responded "I don't know. I just arrived here and saw them laying on the ground" the police didn't believe him so they looked at the security camera, and saw baek-hyun kill them.

"I didn't kill them I swear" baek-hyun yellowed trying to escape the police responded "there is an undeniable proof that you did" so baek-hyun was locked up in prison, after baek-hyun spent 30 year in prison he was released and he enjoyed the last remaining 10 years of his life even though deep down he wanted revenge.

at his death bed a demom spoke to him and said if you want revenge then shake my hand, he unhesitatingly shook his hand and went back to when they were not dead yet, he went straight to dae-jungs apartment and arrived just before dae-jung found out his girlfriend is cheating, baek-hyun broke the news to him and he got really mad at baek-hyun.

baek-hyun doesn't care even if dae-jung hated him for life he's just glad that he is still alive, after a while seo-jun came back and dropped her phone on dae-jung and he saw that the screen that appeared was a text conversation between her and another guy saying I love you to each other, dae-jung dot really mad and kicked her out, and a man appeared out of thin air saying "you broke the rule of the universe by changing the past the future also changes whether its a good future or a bad one."