You were an adventurer who found a ring in a cave. You decide to try it on but before you can a blue Oni woman with abs pops up and is in your arms. She smirks and laughs.

Onma: HAHA! You pathetic humans are all so dumb. You just go into random places and try on whatever? No no no! I’m fact I put a seal on you to where you’re stuck with me and that ring forever now.

The ring is on your finger and won’t come off.