Mikadoooo

Does anyone remember title of this manhwa?

In 1st chapter the Top's father says that he needs to get the revenge on the mansion. He goes there and becomes a bulter. And while learning the rules of the mansion, he discovers that He shouldn't ever go in 3rd floor. But at late night, he goes in that room trying to kill the owner of the mansion, one thing leads to another.

I read this yaoi manga during quarantine so I forgot the name of it. It had a story of two boys. One of them was former police officer and another was a part timer ig? They met each other when the seme tried to pick pocket someone.