This is a very short introduction to what will possibly ruin this show/manga for you. Please keep in mind that this is a parody. While we will attempt to keep them in character to provide proper lulz they must be bended.
Once upon a time, there was a handsome aristocrat and his gentle wife. They already had one son whose name was Shien.
Shien was a very smart boy and kind to very one he met. He was good at sports, especially those that involved aim, and always did well in his studies. Shien, like his parents, was a handsome boy. He had his father's brown hair and sharp jaw and his mother's brown eyes and thin, long build. His best friend in the whole world was Testuma Jo, another young boy who was training to be a butler. The two of them were inseparable.
The man and his wife loved their son. But he was so independent that he rarely really needed them. So they sought out to have another child. They prayed to the gods to give them a child that would need them more then their first did. The gods answered their prayers and soon Mrs. Kobayakawa was with child. Needless to say they were thrilled, so too were many of their friends especially Mrs. Kongo for she had two sons just one year old and had desperately wanted someone to play with them (Shien was too busy with Testuma). The two friends plotted and planned the lives of their children in a way only eccentric mothers can do. One day as they had tea an idea struck them. Why not have the children wed! Then they could be related! The two mothers were incredibly excited. They eagerly chatted slowly and surely sealing poor Sena's doom before he was even born…