The supporting character's harem is very normal - Chapter 231 He must die!

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

I was the reason my idol cancelled her stream…?

Living as a concubine’s daughter in her previous life, He Danggui got herself and her daughter tortured and killed by her family and Princess Zhou, while her husband, Lord Ning, allowed them to do so for a secret. After reborn as a child, she swore to hold back her kindness to the villains. How did she survive in a family with various secrets and conspiracies? Who would be her final choice? The love of her previous life or a new lover who could offer her a happy and simple life? Sharing the identities of doctor, political counselor and princess, was she able to bring great changes both in Jianghu and the imperial family? With her intelligence and excellent medical skills, would she let them pay for what they did to her or live differently as a new one?

Xiao Ze, who was dedicated to the people and vowed to become a generation of Ming Jun, accidentally fell on a little lady.
The little lady was born beautiful and lovable.
So Xiao Ze accepted his life and got the name of fear.

ps:
①The male protagonist has no concubine, and he is dedicated to serving the country.

- Description from novelbuddy