Yukina and Kazuma Kuwabara

When Kuwabara saw Yukina on the tape from Koenma he fell head over heals for her he went to rescue from the crimelord he is the only one who doesn't know that Yukina is Hiei's baby twin sister when he finds out he will be in shock and will have to deal with it he and her brother don't get along but hopefully in time they will.

Yukina and Kuwabara pic