medi and sam are cousins, medi is half korean half russian and i think she's aiming for the justin min to be an older half-brother. sam was born and raised in san diego, while medi jetted back and forth between san diego where her dad/sam's family is, and nyc where her mom is. sam's family is pretty well-adjusted and provided some stability to medi growing up, so your guy could either be close to them (which would be his dad's side) or be closer to his mom's instead but still friendly and on good terms with the kids