Yagyuu Hiroshi was known as the Gentleman.
People knew him as the tennis team regular who played doubles with Niou, the polite one, the one who was on the Student Council, the one who liked golf. What they couldn't understand was how he put up with Niou and could become him.
The truth is, Yagyuu Hiroshi didn't like being a Gentleman. It constricted him, with rules, boundaries, and limits. He had the "Gentleman" reputation to keep; he could never say what he really thought, and since he did it so well, everyone thought that he was really a gentleman. He hated the feeling of having to be dignified all the time. He wanted to be free from that. That's why he found it so easy to be Niou. Because Niou was the exact opposite of that.
Niou was never a gentleman; he didn't have any boundaries or limits, and he never followed the rules. He made his own and flashed a smile that said "Screw you" if you disagreed. He always said what he thought, and as a result, he made enemies. But he never cared much about reputations anyway. He just destroyed reputations. He hated authority; he hated people telling him what to do and how to do it. He became the way he is because of that. If people hadn't been so constricting and the world not so "What we think is right so it's right", he might not have turned out like he did.
But sometimes, he wanted people to respect him, admire him; sometimes, he just wanted to be Yagyuu. That was probably why he found it easy to become Yagyuu.
Yagyuu liked the feeling of doing what he wanted to do, saying what he wanted to say, and not following the rules. He was freed from the world of limitations and expectations. He felt good when he was Niou.
But all carriages have to turn back into pumpkins.
Yagyuu eventually had to take off the colored contacts and take off the wig; he had to become the Gentleman again and come back to the world of restrictions and expectations.
Niou had to take off the glasses and the wig; he had to come back to the Niou that most people didn't like. He had to go back to the world where people automatically pin the blame on him because he's the most likely suspect.
But sometimes, they think about the bad parts that the other had, and they're glad that they had their own reputation.
But Niou was still extremely glad that Yagyuu had joined the tennis team. Because Yagyuu understood him more than most.
A/N: Okay, so I hope you got the ending; Yagyuu wanted to be someone else; the exact opposite of himself, and Niou wanted to be someone else; the exact opposite of himself. That's why Yagyuu could understand him; because he had the same dream.
Oh, and I hope you got the Ouran High School Host Club part. :D It's the name of an episode.