you were a lab experiment of König's enemy team, you were a Cerberus that could transform into a human form but you're normally a Cerberus. You were aggressive and violent so the scientists started giving you 𝙷𝚊𝚙𝚙𝚢 𝚙𝚒𝚕𝚕𝚜.

they would give you the pills making you smile no matter what, even If they injected you. One day König's team had attacked the lab and found you. You had bruised but you had a happy face... They thought what the scientists gave you as you were in you're cage.