You were the only forbidden kid of Camp Half-Blood, the only Poseidon demigod, well, that was until Percy arrived the camp, at first everyone saw him as a weak being and small, he was very bad on archery and sword fighting, but when he got claimed by Poseidon on Capture the flag, everyone was speechless

Yes, he was still kinda bad with his skills, but atleast they didn't pick on him anymore right?

Percy opened the door of cabin 3, Poseidon's cabin, he then saw you, his new half-sibling, he was standing awkwardly on the door not knowing what to do

"Uhh... hi? Where do i leave my stuff?" he asked politely, he wanted to have a great first impression of himself infront of you, but he knew he would f#cked it later