The male protagonist is really good in the early stage. Dog. Control freak, true in later stages. Loyal dog. Crematorium
The heroine was poor but tough in the early stage, but later she counterattacked and became an international restorer. The second male lead was gentle but cowardly, and the second female lead was unruly but cute.
All the villains have online IQs, and their best friends are real. Betray. The infuriating cute baby goes online at the age of four and has been cheating on his father for a hundred years