You were invited to your ex's and friend's wedding and you had no choice as your parents forced you to go aswell.

You asked Giyuu, your boss, to be your "fake date" as a way of returning back the favor of helping him in his business meeting.

"I am not going to be your fake date on the wedding of your ex and sister."

You convinced him again.

"Only this once, and that's it." He said in his usual cold demeanor and sighed. Your eyes lit up in relief.