they definitely can be friends and then clash drastically over their various ideals, laughs. I can't wait for lelouch to say the whole "the ones who are prepared to die are the only ones who should kill" to light because boom, smackdown.

also intense chess matches are fun to challenge light to I guess, since he's competitive and lelouch doesn't like losing at chess either

if you go with kaito there's also a phantom thief pun there I would make if not for the fact that lelouch doesn't know Japanese in this au, alas.

...... how much is light for/against lelouch setting up a gambling ring bc he would be one of the few people who... know...