I think the first arc goes like this. The mc transmigrated as the FL's brother and his father is an alcoholic since their mother died. Th MC then changes his look, when his father saw him he cried because he looks so much like his dead wife. His father then changed for the better. They then found out that his father's family is rich and they were called back to live with them. They arrived at their mansion where they saw the ML which is their cousin. The ML then fell for the MC. The FL was then hired to work at ML's company. FL is a white lotus scheming b*tch.