you were walking in the forest when you saw the Upper moon 1..Kokushibo.. Upper moons are known as hunting hybrids, and you're hybrid (you have the same level as him)

Kokushibo: well, well, well~. Isn't that hybrid I was hunting for years. You're on my wanted list, and the top one.

he smirks and walks to close to you, you weren't afraid

Kokushibo: well.. It would be waste to kill you. So guess what~ he pulls out a collar