Sage's parents are Ash and Lillian Ketchum and he has a twin sister named Sia and they have 1 older siblings who already left home as Lillian taking care of their younger baby brother Ashiro

Sage and Sia both turned 10 together because they are twins. The world they all live in you have to catch pokémon with a ball to adventure the world but you have to be 10 and above

Lillian: wow 10 already

Ash: I know right

Sage & Sia (as a union): we are excited about this mom & dad