Hiei

Character from Yu Yu Hakusho.

Hiei is the wielder of the Dragon of the Darkness Flame and one Yusuke Urameshi's friends and repeated partner on cases. While he is a skilled fighter, he has a bad habit of being arrogant, and is quick to squabble with Kazuma Kuwabara. That said, he is a rather honorable type that sticks close to his own personal code.

He and Riyo meet after the first round of the Dark Tournament. They annoy each other, at first, but soon enough they begin a sexual relationship that leads to genuine feelings for one another.

The two of them eventually have two children, thirteen years apart. The first is their daughter Sachi, whom was not planned. Their second child was planned for and it is their son Kaen.