Ninja: Legend of the Scorpion Clan was a board game set in the world of Legend of the Five Rings, where the player must use his limited resources, powers of deduction, and a touch of guile to outthink and outmaneuver his opponent. It was released in 2011. 
Within the rulebook was a fiction depicting Tachi, a servant in the local Lion Clan state. He is commanded by his master, a Scorpion ninja, to kill a guest of the Lion at their own state before he can attend the Imperial Court the next day and present his testimony. The mission is accomplished by the traitor, in front of Kyotu, a young Lion yojimbo who saw his charge dead.  The murderers began to seek their way out while the bodyguards try to stop them.