That you don't find that as cuck content makes me laugh, she is a li and a love interest that is basically created for the mc / players so her fucking some npc is basically cucking the player / mc, doesn't matter shit if they are in a relationship.
Perhaps you cuck-brained people can't accept that fact and just want to live in your world of delusions.......
And for once I agree, is pointless to try to reason with a cuck like you.