The supporting character's harem is very normal - Chapter 354 Dealing with the Empress

Mochizuki Touya, a 15-year-old boy, who got zapped by a flash of lightning due to a freak accident caused by God, wakes up and finds himself face-to-face with God.

Luo Yi had secretly loved Chu Chen for quite a while and discovered that Chu Chen seemed to really like. . .

Um. . . really like certain 18+ things. . .

So Luo Yi decided to follow Chu Chen’s lead and walked onto a path of being f*cked. . .

- Description from Novelupdates

When crossing over to multiple books, Ren Shuhan found that every protagonist Shou was waiting for him to start chasing them in the crematorium.

“Don’t waste your time waiting,” He advised sincerely, “There are more 0s than 1s, so I’m not going to chase someone that is not interested.”

The protagonist Shou (sneering): Oh, there will be a day where you’ll lick the ground I walk on.

After waiting and waiting…

Ren Shuhan: “This is the wedding invitation for my childhood friend and I’s wedding.”

On the wedding night, Ren Shuhan removed the veil: “Baby, I’ve come to marry you.”

“Don’t you know that life is nothing but a play where you are the male lead and I am just a supporting character?”

“I know, but I don’t care.”

He was smiling, but Jiang Qingyue wept.

- Description from Novelupdates

Her rebirth gave her a second chance at life. She was back with a vengeance and wanted to make those that had harmed her pay. But to those that helped her, she wanted to repay them. Her evil stepmother? She would slowly pull out her claws, one by one. Her evil stepsister? She would crush her pride. She thought that by getting her revenge for her past life, she would be happy in this life. However, she never would have thought that danger would chance upon her time and time again. The hatred from her clan and whether their bloodline would continue to exist, lay solely on her shoulders. Luckily, on this thorny path, someone had always been protecting her. “Third Prince, have you ever regretted being with me?” That person laughed lightly and peered at her with a loving yet weary look, “As long as I am together with you, I have no regrets.”