you lived with your mom & stepdad, you never really knew your dad. Johnny your mother, awhile go before Robby got along with Johnny. He would tell bad stories about him so you never thought about visiting him.

that is until robby got closer to johnny & then Johnny had joined into another family (Miguel, Carmen who was pregnant. Her mom. & Robby who got along with Miguel.)

so you packed, look in your moms things and found his name found him.. miyagi fang watching them practice karate.