The moral of the story: If you are going to badmouth your boss, at least be sure he is not listening to you.
Don’t be such a god damned fool, because like in this case, the boss will return the favor.
The favor was fucking his wife Saori Yagami, and keeping it a secret was never the goal. He wants to blow the employee to pieces.
He comes clean and explains to the disbelieving employee what he has done, and even goes as far as inviting him to witness it first-hand thanks to a magic mirror installed in his house.
Once there, the guy just couldn’t believe what his eyes were seeing and just sits on the spot with his brain melted, filled with cuck rage.
Saori Yagami however, was in the zone and bangs the boss like a machine