Option A is an au where instead of breaking into sangwoos house, yoonbum decides to actually ask him out and when discovering that sangwoo is a killer, joins him.
Option B is sangwoo is actually the in stalking yoonbum and kidnaps him
Option C is that instead of it being torture, yoon and sangwoo are just in a really kinky relationship. Everything else is the Same though
Option D is like black butler, where my Oc is a demon and makes a contract with yoonbum
Option E is my Oc is a therapist that yoonbum sees after getting free from sangwoo
Option F is a transfer student idea. My Oc goes to Korea to study abroad and gets kidnapped by sangwoo only to easily escape with Yoon
Option G is when yoon tries to escape that first time, my oc actually does find him and help him
Of course we'd incorporate your Oc and sangwoo into the ones that involve my oc if you wish
