Ray Abernathy, a master of disguise who is also known as the most mysterious criminal mastermind and international thief. Despite being a mastermind of the Assassin Mafia, he is the member of the Holmes Tantei Agency disguising as his brother. He was once bestowed with an iniquitous fate, and then began to seek for revenge in this world to falter.

"I've killed 77 people within a 

span of seven months after finally 

being taken in by the Assasin Mafia. Now I'm coming for them. I'll let them feel the wrath of my revenge."

But then... How could this one person can make him doubt his revenge?

(detective boys series #1)