what blood doesn't bind (слэш)

Sasuke is a junior member in his father’s syndicate, struggling to get a name for himself and a better standing. He doesn’t have much hope with that, despite being one of the best hitmen and drug couriers one can find. But he’s also an omega, which alone puts him at the bottom of the hierarchy.
Then Sasuke is given a chance of his lifetime: he is to infiltrate a rival clan, Uzumaki, as a captive, and spy them from the inside. At least, that’s how Sasuke is led to believe—then he finds out that he’s been sold to the boss himself. Sasuke has trained for years to hide his omega side, but Naruto is the only alpha whose commands he has difficulties to resist.
When Naruto does find out Sasuke’s an omega, he changes to something else entirely, and Sasuke begins to realize that the real family doesn’t always share blood ties.