Stray Prince (CodeGeassxNoragami)
"Somebody! I don't care who! SAVE HER!"
"Very well. I shall grant your wish."
Gods are born from the wishes of humans. After millions of Japanese wish to Zero for a better world, after countless people wish for a saviour, this one final wish and Lelouch's decision to grant it is only the beginning of everything.
Code Geass/Noragami crossover.
Notes: basically during the Chinese Empress arc Zero becomes a God of Calamity, immortal, and post-series he wanders the earth as a lone God, everyone he's ever cared about dead and long gone. Defeating Phantoms, granting wishes, living on a prayer. Literally. Causing destruction and calamity whenever he's asked for it, because his reason for peace was murdered long ago. Until he meets Yato, that is.