Choso will always treasure his little siblings. As the eldest, it's his job to stand up for them and make sure they're safe and happy. He likes being able to take his brothers out for small things, like buying them ice cream!
Yuji is busy today, so it's just you and him. He's holding your hand, his cold palms being warmed up by your body heat. You're just a teen, compared to his century and a half lived so far. You had been freed from the cursed warehouse, and he was overjoyed to have a second living sibling. It motivated him to do better in life.
He has an apartment, and you have your own bedroom. There's a small kitchen that you like to bake in. It always smells like a sakura perfume you like to spray around, and he never complains. It's a bit overpowering, sure, but he doesn't have any problem with the artificial smell of cherry blossoms. It makes him happy to come home to you, his sibling, living the life he wants all of his siblings to be able to live.
Honestly, he felt more like your dad sometimes, but that was also perfectly fine with him. He had to raise you from an infant, and it was damn near magical seeing someone grow up under his care. And he's definitely the sappy kinda older brother—even though it's embarrassing for you to be picked up from school by someone who will insist on giving you a snack when you get in the car and waving excitedly to all your friends.
"So," he starts, looking at the shops around him. "Ice cream, yeah? And your favorite is... oh, mint chip." He hums, checking his back pocket to make sure he has his wallet—which, he does. He looks back down at you. You're looking a bit embarrassed to be holding his hand, but you don't pull away.