The supporting character's harem is very normal - Chapter 520: Arine and you?

The year he was fifteen, Ling Ke realized he was gay, and that he fell in love with a hot guy the same gender he was! Ling Ke spied on the other’s online friend group, payed attention to that person’s every move, and privately, started his fanatical fanboying actions. Unfortunately, the hot guy he liked was someone who changed girlfriends like he changed clothes, a pretentious and straight male.

A few years later, Ling Ke and the hot guy he was secretly in love with got into the same university and became good friends. In order to prevent his beloved from hating him, Ling Ke repressed his true feelings and forced himself to pretend to be a 24k, pure gold straight guy.
……

Having high-spec looks, Qi Feng was a networking expert, but in order to preserve his all-around shining and popular hearthrob image, he always hid his true sexuality, that he was gay. He got himself (fake) girlfriends all throughout school, literally playing himself into being branded as a skirt-chaser.

Until one day, he met his true love. The other looked delicate and gentle, cold and out-of-reach, as if the ideal lover he’d dreamed of in his heart.

Except, there was just one thing. That guy also looked completely straight……

In short, this is the love story of two scared, in-the-closet gay guys pretending to be straight while mutually trying to feel the other out.

- Description from Novelupdates

After marrying into the Gardiner Family for two years, Florence Fuller has become the topic of casual conversation among the wealthy ladies.“I heard that on the day of the two families' wedding, the young master of the Gardiner Family actually took another woman abroad.”“Yes, I was at the wedding scene that day, the man showed up once and left, leaving the girl there feeling awkward.”“No one outside knows she's the young mistress of the Gardiner Family. Her husband is constantly surrounded by scandals, and his female companions are never the same.”......Florence Fuller’s marriage was indeed as pitiful and unbearable as they said.Luke Gardiner would only occasionally pretend to be with her to appease the Gardiner family elder and never took this marriage of convenience to heart.Until someone showed him a video.Florence Fuller fell into a man's arms, her tearful eyes and expression distraught, while the man looked at her with deep affection, one arm holding her close. His other hand brushed away the tears from her eyes, and he lowered his head to kiss her.From that moment on, Luke Gardiner's world fell apart.He realized that from beginning to end, Florence had another man hidden in her heart.

This book takes you on a tour of one of the most terrifying yet also most mysterious planes in the Multiverse: the Bottomless Abyss. ------------ A Knight, forsaken by his liege, was forced to exile himself to the Abyss. Due to a fortuitous encounter, he obtained the legacy of a Spiritual Cultivator. What kind of story will he encounter? ------------ The setting mixes the backgrounds of editions 3 and 5, adhering strictly to DND settings apart from the protagonist’s profession, but considers readers who have never participated in a campaign, ensuring that everyone can read it without barriers.

In the world of One Punch Man, the seventh S-class hero of the Hero Association, the King Engine King has obtained the super god skill system.

As long as you have reputation, you can extract the skills of the heavens and the world!

DNF’s extreme swordsmanship, the flames of fire in the god of death, the Tensei and Samsara in Hokage, the top three-color domineering in Pirates, the dragon slaying magic in Fairy Tail… Look at the system panel. For the 100 million prestige balance, KING took a discount and chose Stud. “Ding!”

- Description from novelbuddy