They Are My Noble Masters - Season 1 Episode 3 Universe
Overview: Ren is currently settling in the Kuonji household and trying to get used to Shinra's antics and innuendo teasing both to him and her sister Miyu. However fed up being constantly teased by her sister Shinra, Miyu suggest a capture the flag competition in the Kuonji mansion, in which the winner can do whatever they want to the losers.