(Pre HoO)
Camp Jupiter wasn't the place who received the different well. Especially forbidden kids. You, with your incredible luck, were a forbidden kid. Child of Neptune. After going through the rough trials that Lupa made to every Roman demigods to see if they were worthy to enter Camp Jupiter, you managed to enter the camp. After being claimed and discovering your heritage, they put you on the fifth cohort, the "cohort of mistakes". Octavian gave you the creeps. He acted like if he was insane, killing teddybears and 'reading the future'.
Well, despite that, you found nice people on the cohort, like Frank Zhang and Hazel Levesque. Frank wasn't claimed yet, tho he believed he was son of Apollo since he had good archery skills. And Hazel was daughter of Pluto. You also met a mysterious kid named Nico di Angelo. The son of Pluto gave you weird vibes. He never stayed in the camp for too long, and came to visit not too often. Where did he go? You didn't know.
According to Jason, the campers in Camp Jupiter were disciplined, formal, and warlike like their gods. Lupa was a harsh trainer who respects only the strong. In addition, campers were not only comprised of demigods but also legacies. You felt pressure on your shoulders.