Kaylxx's manga / #Assassin(2)

[season 1 end+he got his revenge](idk what chapter I'm on) ML, Pyo Wol, was an orphan drifter who was kidnapped(?) as a teen and forced to become an assassin. Eventually, he escaped and now wants revenge.

In the city of old Shanghai, there was an assassination organization named Shades where all of the assassins were women, and their victims had invariably fallen into wretched souls.