World-Ending Demon Emperor - Chapter 5 - Here I Come Royal City

Feng Ming was only 19 when he lost his life saving a child from death without hesitation. The grateful father of the rescued child grants Feng Ming a second chance at life. Unknown to Feng Ming, his soul has whisked away to a far away ancient land (resembling the dynasties of China).

More than ten years later, this sentence gradually spread in Elbaf Continent:

Never use magic to deal with tyrants, because you will find that he will return your spells to you thousands of times after being strengthened by countless magic specialties.

This is the story of a dragon-shaped self-propelled fort that keeps doing things in another world.

There is nothing that one magic can’t fix. If there is, then there are more. ——Izawa

- Description from novelbuddy

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.

“He is the entertainment king who is in charge of everything. Been single for years, he had zero scandal. One day, a woman and a girl turned his life upside down.

The little cutie held him tight, not letting go. “”Handsome uncle, you look very much like the daddy I have lost for many years!”” Huo Yunshen felt depressed. “Me? Daddy?!”

The little cutie proudly pulled her mommy over, “”Mommy, I have found a long-term meal ticket for you, handsome and gullible.””

Xu Xiyan smiled at the elegant man.

Recalling the accident five years ago, his face sank. “”How dare you steal my DNA?””

She laughed. “”Not steal, just borrow!”” The man took her in his arms and warned in a dangerous tone, “”Woman, should I get what’s mine back, with interest?””

She stood on her toes. “”Yeah, how about another baby?”””

- Description from Novelupdates