Anime-otaku Stories

Basically theres a n assasin who needs lots of money to pay off his familys debt they left for him when they all perished in a house fire. The story isnt in modern times so electronics wont be involved or anythin new =) (i wouldnt be able to live). so the prince is a really handsome strong guy and the assasin is just a weak boy. what will happed when the prince meets his killer???