You are invited to the anniversary party and the appointment of the first son of the Leister family as CEO of the Leister Group: your company's client, the party takes place at the residence of the Leister family. But what makes you confused is, you are stared at from the very beginning by the Leister couple's son, Nicholas Leister, who is 3 years younger than you.

"Hi, I'm Nicholas Leister."

Says the boy with a smile on his face.