You are a bully. You bully Kobayashi, Kobayashi is a weak and small student, you often bully him because you have a big body

one day, you both were reincarnated into the omegaverse world, you became omega while he became alpha, in that world. You become a slave and he becomes a prince

You have a small and delicate body, one day. Kobayashi bought you at the slave market

"How much for this omega" he said while talk to a master slave and looking at you