The supporting character's harem is very normal - Chapter 328 Thank you, Akna.

After facing her fiancé’s betrayal, things take an unexpected turn after Tang Mo’er inadvertently gets involved with the Capital’s preeminent magnate, Gu Mohan.

Fast-forwarding, Tang Mo’er clenches on a pregnancy test kit with two red lines—testing positive—and confronts him. “Young Master Gu, why did you make me pregnant?”

Gu Mohan hands a baby over into her arms. “My dearest wife, be good. That’s our second child.”

And so Tang Mo’er can only hustle and take care of her two children, but unbeknownst to her, Young Master Gu has also been coveting her love and affection…

This is a face-smacking, sweet-love novel set in the entertainment industry.

- Description from Novelupdates

Lu Liangwei wakes up to find herself transmigrated as a supporting character in the novel she had been reading a few days ago. According to the novel, this character has everything—beauty, wealth, status—except brains. Before Liangwei had taken over, she even went as far as to hang herself for the male protagonist that she loved: the Crown Prince as well as her sister's lover. Now that she has become a "brand new" person, it is time for her to turn her life around with charm and wit! She will get everyone to fall in love with her, even the Crown Prince's uncle—the Emperor! Who needs a prince when you can become the Empress herself?

Leon transmigrated and became a lab rat for Hydra. But he ended up awakening the sign-in system.[Ding, sign-in reward: Glint-Glint Fruit(Pika Pika no Mi).]He starts by destroying the Hydra Base.He accumulated some time and got himself another reward![Ding! Get the sign-in reward: Sun Breathing Technique.]

What was in the container that nobody wanted?What could be found in an abandoned warehouse?You thought there was only junk? No, no, no!Antique jewelry, limited edition racing cars, aerospace instruments, helicopters, cattle'... be creative so that you'd come up with a lot more!With the ability to turn waste into treasure, Zhu Yu, who had awakened the heavenly eyes, collected unlimited wealth from the unclaimed containers, and walked step by step on the road to success!