I find it interesting if there's a love story regarding human & robot with a plot twist of the human was a robot all along, but it was so human enough for it to be mistaken as one and long past since there are real human existence or long past since there's information regarding the existence of robot with emotions that's so close to human was successfully made. I would be interested to read if there's one.
https://ebookjapan.yahoo.co.jp/stories/all/145207/
https://www.cmoa.jp/title/309545/
It's Japanese manga not a Chinese manhua ╮( ̄▽ ̄)╭
wrong info on the comment section.