I am happy to oblige. 😎😁 But no promises on quality because this one is nothing more than doodles and what-ifs and headcanons. And also because I believe this will sadly stay on the drawing board. (😭 Fingers crossed that it's otherwise).
It's basically just the plot of Code Geass with Death Note in it. But the canon world has to go through extensive worldbuilding so it adheres to both the rules set in Code Geass and especially Death Note.
One instance is the the royal family in Britannia never releasing their full names or "real names" to the public for security measures. This rule took effect during the Century of Blood in Britannia's history to try and prevent assassinations in the royal family. Didn't really work out that well.
L works for the Britannian government (although he's obviously not a very strict rule follower. He's pretty passive about nobility and its status. Very much like Lloyd Asplund).
Light Yagami is a Japanese/Honorary Britannian student at Ashford Academy, still just as upset with the world and desiring to change it (even moreso because Britannia is a racist and machine), and is hellbent on doing it after he finds the Death Note and meets Ryuk.
Lelouch is still pretty much Lelouch. Same motivations. Wants revenge against his father, seeks to destroy the Britannian Empire, eventually leads a double life as Zero and leads a rebellion against the Empire.
Ryuk and C.C. were supposed to have this weird "connection" where they are actually aware of each other's presence and each other's power, but they do their best to hide from one another. They both withhold bits of info from their "contractors", such as C.C.'s awareness of the existence of Shinigami and a notebook of death, and Ryuk's knowledge about the power known as Geass.
Ryuk acts the same way he does in canon. He's just here for the fun and is not that interested in meddling with Light's affairs, other than to watch what he does with the Death Note and how he's going to deal with Zero.
On the other hand, C.C. is actively helping Lelouch in his rebellion and figuring out this sinister serial killer known as Kira.
This fic also features: