Sorry for how long this took me... I've run out of inspiration to write anything at all and that includes the prompts here, but I tried to come up with a small story of how they would meet and their dynamic :0

I will choose Ms🌟 for this because I haven't seen anything like it before! And the younger they are the more insane I get.

Perhaps one day, after a certain visit to Saki in the hospital, Tsukasa leaves sits down on a bench in a park nearby to rest, a distant, empty expression replacing his usually smiling face while unfitting thoughts for an upbeat and undefeated future star swirl around his head. He is alone (or so he thinks) so he allows himself to have at least this moment to dwell on them before trying to do something to cheer himself up, but suddenly, a little kid with bright purple hair and yellow eyes approaches him with a kind smile and offers him a balloon that resembles a flower.

Dumbfounded, Tsukasa asks himself why, and before he can voice his question out loud, the boy says "You seemed so sad, sir! I hope this can help in bringing a smile to your face." And of course those strike a deep chord with Tsukasa, who as we know, shares the same objective in a way, to make happy those that surround him. Although, in this case, it's embarrassing to be cheered up by a kid.

That was the beginning of a good friendship, despite the age difference in between both of them. Every time Tsukasa went to that park after going to the hospital, Rui (he told him his name afterwards) would be there there, and they quickly bonded over their love for shows and acting. With time, Tsukasa would grow see him as just another little sibling, but Rui would develop a huge crush on his Tsukasa-nii instead, saying things like "When I grow up, I want to marry Tsukasa-nisan!" and starting to treat him like his fiancé. The middle schooler would be surprised and embarrassed to hear such things and he would tell Rui that he can't say that, that it's wrong and so on, but nothing would stop little Rui's determination... And he will make sure that Tsukasa becomes his wife!...

...No sex for now because I ran out of brain juice but suggestions will be appreciated when I open my retrosping inbox again 🥴 I need to see that shota dick inside Tsukasa too...