I've read a synopsis of this online, but can't find it anywhere. DYING to read and sounds really good, if a bit confusing (I'll have to read it to know). Judging by the cover and by Kim JE's art, I know it's bloody hot too.

Found synopsis:
"The series is about a syndicate of assassins.

Basically, a young boy (hes the innocent looking brunette) see's his mother get assassinated & vows revenge, he grows up & finds a mentor/teacher, whatever; he becomes his companion (lover) and becomes an assassin himself.

His mentor is an older blond seme (pictured below; he doesn't look that old, rather only a few years older then the lead uke).
Our uke ends up becoming close with his teachers "abandoned" son, who's also an assassin for a rival company.

He's also blond by the way; so it can get confusing. (its hinted at that maybe hell get his revenge by doing something to his son).

He knows his master/teacher killed his mom but he fell in love with his boss, (thats why you dont mix business with pleasure; its hard to separate your feelings).

The shocker is that the teacher is also the lover of the assassins company's boss & that the lead ukes lover is an uke himself for the assassin companies boss

Who will our uke kill? His lover? Or his lover's lover? The man who hired him to kill his mom."