well I'm just compiling ideas right now?it's called century,but by the other definition: a group of 100. There are 100 assasins in a guild and the main character was a member of the mysterious organization called cintury, but when he found out that his family was assasinated by its leader who had raised him, he goes on a mission to slay all of the other 99 members to pay for their deaths. he feels betrayed beyond belief and he wants to make No. 1 pay for what he did, because he thought that his family had died a long time ago on a cruise to tokyo....