His Viper

Chrollo comes in contact with a group similar to his own. But there is one problem. They are much more of a threat to him and the Phantom Troupe, than their actual enemies are. But regardless of that he agrees to team up with this group, known as, The Vipers. When they meet it goes horribly wrong but they find a way and make a decent team throughout their missions.
Some feelings even start to develop between the groups, but they are unsure if acting on it for the safety of their own group.
But it all changes for the worse when the Viper's strongest member gets taken by the enemy, and they are unable to get her back.
Will the feelings be returned and will they get her back safely?

And I purposefully made almost all of the OC's in this over powered, it was completely intentional. So please don't come at me and say they're too overpowered, because I know.
And there will be ships in this aside from the oc x one of the members.
And there is gore and language in here, and I might add in some 🍋 later on in the book. Between more than just the main ship.