MTL - The Apocalyptic Master of Synthesis - Chapter 630 Ambushed Styx Legion (subscription required)

In a world fraught with innumerable dangers where living day by day is a struggle, a young man from the modern age transmigrated into such a world, accompanied by a peculiar system made for assassination.

“My unrequited love is over.” Compared to my perfect older brother, I, Ha Giyeon, was endlessly lacking. My first love and my last love—every single one of them were my brother’s friends. What I got in return for pouring all my affection into them were cold, violent words of rejection. Then came the thunderbolt: I wasn’t even their real son. My family, whose love I desperately sought, kicked me out of the house. Even though I scraped by doing hard labor, it didn’t feel like living. Then came the sudden car accident. Right before dying, I regretted everything and begged— That if I ever got to live again, I would never give my love to the family who scorned and discriminated against me, nor to the brothers who tormented me under the pretense of affection. I would live a life that was truly my own. And as if it were a lie, in the winter of my 17th year, Ha Giyeon returned. As Ha Giyeon began to change, so too did the family and the brothers who had once trampled him…

After self-sacrificing, Yuri transmigrates from an apocalyptic to an interstellar era, inhabiting a disabled girl's body. She enters a joint marriage with a similarly disabled SSS-tier alpha, gaining a share in an ore planet. Determined to help her husband regain leg function and reclaim his SSS-rank, their journey together unfolds.

Satou Shiki a Japan present-day university student suddenly one day he got attacked by a slasher when he open his eyes he was already transferred to another world’s labyrinth city. In that another world he who was awakened to do a lot of “things”.