MTL - Time Traveling: the Only Beloved Husband - Chapter 1

Haruma Kazuki is a cursed (or maybe just deeply unfortunate) high school student whose lewd, panicked, or absurd thoughts literally manifest in reality — especially when he tries not to think about them. The more he denies or avoids feelings, the more chaotic and trope-heavy the consequences.

When a fantasy kingdom needs heroes, they skip the high schoolers and summon hardened Delta Force operators.Lieutenant Cole Mercer and his team are no strangers to sacrifice. After all, what are four men compared to millions of lives saved from a nuclear disaster? But as they make their last stand against insurgents, they’re unexpectedly pulled into another world—one on the brink of a demonic incursion.Thrust into Tenria's realm of magic and steam engines, Cole discovers a power beyond anything he'd imagined: magic—a way to finally win without sacrifice, a power fantasy made real by ancient mana and perfected by modern science.But his new world might not be so different from the old one, and the stakes remain the same: there are people who depend on him more than ever; people he might not be able to save. Cole and his team are but men, facing unimaginable odds. Even so, they may yet prove history's truth: that, at their core, the greatest heroes are always just human.

Su Yang was bound to a ‘Slag Cleansing’ System, each world he went as a slag Shou that was rejected by the Gong. In order to return home as soon as possible, he began to work hard by counter-attacking the people who rejected him.

Later he found that these people who were supposed to have normal attributes going by the script were all abnormal. In the face of this rabid animal, Su Yang was forced to abuse his heart again and again.

This story is also known as:

“I said: I am not that slag, will you still accept me?”

“The day’s when a puttering man is in the world.”

“Insufficient words will open the purgatory/hell mode.”

Tentative Worlds:

The President’s Unfaithful Lover

The Prince’s Escaped Fiancee

Crime Lord’s Undercover Boyfriend

Ghost King’s Grim Student

Emperor’s Confession

Marshal’s Omega Adopted Son

The Zombie Lover

- Description from Novelupdates

Kang Min-hyuk, the loser of the checkpoint, gained a high-level magical civilization and everything changed.