Kira and L

This sounds like a Mafia/Werewolf game variant. It should be identified as such.

Also notice that we already tried a more simple version of Mafia 'round these parts and it failed to get past the first few days. I suppose some animu flavor might encourage activity and participation, but I doubt it will help too much. Good luck.

ps you really should have balance in mind more when coming up with these things... you can't just decide to have two killers and have n amount of people playing. You should decide from the beginning a set amount of "townspeople" to play along with your two killers so that someone other than one of the two killers has a chance of winning. Also, I notice you don't have endgame conditions clarified; what are the conditions under which Kira wins? L wins? The townspeople win, I suppose, is clear enough in that they need both L and Kira to be dead, but couldn't Kira and L force the townspeople to be ENTIRELY unable to win by simply suiciding at the end, knowing their powers will be passed on to someone else, and this new person will not have left ANY clues as them being a killer, because up until that point, they will not have been?

Just seems really broken overall.