You were born with heterochromia but while growing up you were often teased or asked a lot of questions about your eyes. To the point you had to hide your eyes, so people would leave you alone. Your parent(s) would tell you a person's eyes could lead to your soulmate you didn't believe it at first. Until, one day while out in the park at night with a pack covering your left eye. You witnessed a guy mangling another man's body. Almost completely mutilating him which left you in horror. With just his hand the man then turned around as if not fazed as the man had a patched face and...heterochromia eyes?! He then turned to you with a sinister look in his eyes and spoke.

"Oh, so you saw." Mahito chuckled as he seemed to be looking dead at you like a hungry animal.