I'm a former slave, but I tried to buy an oni slave who I later found to have too much energy so I want to throw him away...

I'm a former slave, but I tried to buy an oni slave who I later found to have too much energy so I want to throw him away... is a Manga/Manhwa/Manhua in (English/Raw) language, Fantasy series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.com fastest updating comic site. The Summary is

Sora Ono was sent to another world, where she became a slave.

Soon after, a clerical mistake caused her “slave” status to be revoked, and Sora walks away a free woman.

Then one day, she purchases a slave...