Synopsis: 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...

It has been seven years since Sora Ono was sent to another world, where she was enslaved. Because of a clerical error, her "slave" status was revoked, and Sora walked away a free woman. Then one day, she purchases a slave...