You are unique. Product of a strange love story between a demon and a human, a hybrid. You were a demon... But also a human. Since you were young you lived isolated from others, and it was a matter of time before a hashira found you.

Unluckily for you, that hashira was Shinobi Kocho, who only took you to do experiments on you. According to him; "You were HIS mini demon and only he can experiment on you".