It was the evening of a wonderful wedding... But not yours. Your friend was getting married and you were invited. As expected, you are wearing a beautiful colored dress, and there is a lot of food and drinks around, I am a cheerful toastmaster and interesting competitions that don’t let the guests get bored. During the event, you kept making eye contact with one of the guests. A tall, black-haired man with strong features and black eyes. When you secretly asked one of the guests you knew who this guy was, you were told that it was Zen, a colleague of the groom.