The supporting character's harem is very normal - Chapter 198 Ninth Hero – Demon Lord

A striking man of mysterious origin and peerless talent, he looks back at the world, in all its entirety, with utter disdain. And yet, in the treacherous and unpredictable ultimate formation of the Boundless Secular World, he guards a breathtaking ancient qin with broken strings, waiting silently for the destined one to arrive!

A boy encounters him, and knows for the first time that the world beneath the Heavens is a fickle place. Not even demons, devils, ghosts and monsters can match the frivolity of human nature!

A slender physique, and jade-like beauty, but the sword that strikes between heaven and earth is not unlike a streaming rainbow!

The vastness of the starry sky, the seven emotions and six desires! Greed, anger and ignorance! The teachings of Buddha will grant you boundless strength!

A sea of blood will come, at the cost of all mortal beings full of honest hope!

The ghosts wail as the gods roar, but the sea of blood has no end!

Where, pray tell, is the path I should take?

Since there is no path, no matter how bitter and bloody the sea, even if my boat is made out of bones, I will soar to the heavens above!

- Description from Novelupdates

A series of short stories in the world of Toaru Majutsu no Index organized into chapters featuring Kanzaki Kaori as the protagonist, going around the world and space doing missions for the Church of Necessary Evil, however, there is more than meets the eye as each incident is connected.

One chapter was bundled with each limited edition release of the Toaru Kagaku no Railgun anime DVD and BDs, with all of them together being equivalent to a single normal Toaru Majutsu no Index volume

A happy and fulfilled life, everyone wanted that. Rio was no exception, he too wanted to feel joy and fulfillment.

But how many actually achieved that?

He didn't know, but he knew that he was not part of those.

Rio, a part time editor of a webnovel called, The Last Stand, transmigrated inside the world of the novel. Not as a main character, nor as a villain, not even a student.

But as a professor.

A simple extra, professor that was never even mentioned in the story. Through some circumstances, he was the mentor of the main cast of characters.

Armed with knowledge of the future, treasures of the world, and skills of different origins. He would raise these students to their utmost as early as possible. He felt that there would be no problem.

However, as time marches forward he realizes everything was not as simple as he thought.

The plot, or the future, as he knew it was going further down the rails. The body he occupied had a mysterious identity. A higher existence watches over him.

Realizing the implications, he gave up on staying low key and unknown. He will strive, live, and survive admist this world of cruelty.

A world set in a modern futuristic setting where cults roam free, capitalism corruption rises, demons and other races exist.

However, even if he survived and lived, will he even feel happinness and fulfillment? He didn't know, but he will live still.

Zhang Ye was originally a mundane college graduate with aspiring dreams to become a star, but unfortunately has below average looks and height. However one day, he woke up and suddenly found himself in a parallel world!

It’s like the same world, but wait a minute…many brands, celebrities and even famous works from his world changed and are gone in this new world!

Armed with the profound literary knowledge of his previous world and a heaven-defying Game Ring that gives him magical items, stats and skills, Zhang Ye embarks on a journey to pursue his life-long dream of becoming famous!

Follow Zhang Ye as he takes the new world by storm, one plagiarized piece at a time, to hilarious reactions!

- Description from novelupdates