As name says this oc would be twin or young sibling of cho cho they have many same abilities as her like ability turn people peons, and has seven different forms with each different personality and body changes match the personality the main difference between siblings is they can communicated with personalities and have conversations with them and their powers are link together (cho cho and oc) finally if doing pairing if want pair cho cho with them you can do that as long as you give a good reason for their feelings not just because they think she hot or cute.