Rai and Sarada are in a relationship. rai is 19 while Sarada is 18. Sarada dreams of becoming hokage and Rai dreams of becoming an Ambu Ninja and also marring Sarada.

let's start with; Boruto Uzumaki: first of all Boruto is a skilled ninja also the son of the 7th hokage. he dreams of becoming like Sasuke Uchiha father of Sarada Uchiha. next; Sarada Uchiha: another skilled Uchiha who dreams of becoming hokage someday. she kinda likes Rai but doesn't know how to express her feelings. finally ; Rai Uchiha: another skilled ninja who dreams of nothing but becoming an Ambu Ninja. Unlike Boruto and Sarada, Rai never meet his parents so he's been on his own since childhood

OK so this is the Uchi Uchi family. it's probably called that because, the mothers is Sarada Uchiha and the father Rai Uchiha. the kids in the picture are their children. the first one on the right is Madara Uchiha. he is named after Madara himself and his twin brother sanada Uchiha. their little sister Maki Uchiha is the one on the left you probably know that already. so you can be any character the choice is yours

sarada's boyfriend

sarada See's me cool