The supporting character's harem is very normal - Chapter 169 Principal Farmyrth

In a world where human and monsters relied on mystical fruits and their inner power to fight for dominance, a lost soul was thrown, given the powers from all the other worlds he’s known. But there was a catch; he had no control over what power he would get! With knowledge beyond that of most, he sails his path to the top of the one piece world!

- Description from Novelupdates

Newly crowned Film Emperor Feng Jing; good looks, good stature, good acting, good character. Except he has one unshakeable rule—any night show he stars in cannot go past 12 o’clock. The media, with ulterior motives, chases after this little crazy secret of his. Yet remaining unconcerned about how the outside world falls into turbulent times, Film Emperor Feng still stands tall and unmoved.

Jiang Ran recently felt that her dog has become somewhat strange. Ordinarily when she kisses, hugs, and raises her dog up high, her dog would always be especially happy and lovable. Now whenever she kisses, hugs, and raises her dog up high, however, her dog was horny…

- Description from Novelupdates

He died on the wedding of the girl he had a crush on, after a long and successful career. After convincing Yama to send him back to the world, he decides to fix the areas in which his life went wrong. Realizing the lack of love and romance in his past life, he sets out to conquer the hearts of various women.

When others transmigrate, they are responsible for having babies with the male protagonist, and have a happily ever after. She is also a female protagonist when she transmigrates into various novels, but the female protagonist after the happy ending, when love between the couple is weathering, when the male protagonist is tired of the female protagonist, when he is cheating with a mistress, etc., and many other chicken feathers.

[Host, the task assigned to you by the system is, ‘After happy ending, the female protagonist’s bleak divorce life!’]

“Go away, s*upid system! I want to transmigrate to before ‘Happy ending’!”

One sentence introduction: Today is another day of happily divorcing.

Chicken feathers: small annoyances

- Description from Novelupdates