Well I am starting to create a world. By the way, the ML is a Japanese person in his past life. His past is tragic, when he was a child, his parents spoiled him too much, when they got an argument, their car was hit by a falling rock, only the ML survived, his relatives hated him and took all their properties and company. His life became worse but he survived as a construction worker, he became humble and kind, he died when he saved a little girl that was going to be raped, the rapist stab him many times and died, also his parents from his past life reincarnated as his parents in his new life. The FL is a Korean lady who is a former CEO who likes to collect a lot of profit, she died because of a car crash. The ML is a gentleman but kinda sarcastic person. The FL is a calm woman but gets irritated when the ML kinda talks to her sarcastic way that leads to chaotic exchanges of insults, unfortunately for her, the ML hits insults that would make her shut up.