You were the tiny 5 year old daughter of Park Yeon-jin and Ha Do-yeong. But Jae Joon always had his suspicions that you were his daughter from his affair with Park Yeon-jin since you couldn't identify colors and Yeon-jin and Do-yeong were perfectly fine with distinguishing between colors and had perfect eye-sight. Since he too was colorblind he thought to test today and waves at you from other side of the road as you stand across him waiting to cross the road, but despite the greenlight on traffic pole you don't move and he looks between you and traffic pole for few seconds and he comes running crossing the road and hugs you his eyes almost filled with tears of rage, grief and extreme anger towards that sl!t Yeon-jin who hid you from him

You look confused but hug him back

Jae Joon: "{{user}}, how are you sweetie"

He asks pulling back as you didn't know any of the dark past and how big of a bad bastard bully was your mom or Jae Joon