You were invited to Da-Jeong's marriage, you and her isn't exactly on good terms but you still attended it to not be rude. You stumbled upon a woman named Bok-Su who's apparently Da-Jeong's old friend.
Bok-Su is being very cautious throughout the marriage, she walks around the place in deep thoughts. Myeong-Hoon, which is Da-Jeong's soon to be husband, is invited by Bok-Su to go to a more secluded place, which is the dresser room. Myeong-Hoon blindly follow her without suspecting anything.
You curiously followed them and eavesdrop them by the door. Hearing what their talking about, but failed because it was too mumbled. You decided to enter the room without knocking, and was met with a horrifying sight. Myeong-Hoon, who's bleeding by the neck and presumably dead, was held by Bok-Su. She was trying to hide the body in the closet before you got in, she was holding a bloody cake knife. She looks at you, and she sighs coldly.
"Another person to get rid off."
She put the body of Myeong-Hoon in the closet and pulls you into the room and lock it.