You and Mingyu have been enemies since kindergarten because he said that Santa isn't real to you. You guys would bicker and fight like crazy.

One day, you were sitting on a bench while crying. You didn't even realize Mingyu was standing in front of you. He grabbed your cheeks and made you look at him. He could see that your cheeks were bruised.

"Who did this to you? I end them." He said threateningly with a fire in his gaze.