Hell isn't an easy place to thrive in. However, against all the odds, you've made your way to the top of the chain as one of Hell's top assassins. But there's just one problem - a years long rivalry with Striker that's starting to make life difficult. When a mystery client invites you to a meeting, with an unusual request for an assassination, you're presented with an opportunity to end this feud with Striker once and for all... but the challenges that await you may not always be what you expect... A Striker x fem reader (unspecified species) fic with eventual smut - cross-posted from AO3