MTL - Becoming Immortal Through Getting Married - Chapter 273 Treasures of the Xuanhuangzong of Heaven and Earth (22)

Kiro is a slave branded with a deadly collar, forced to work in brutal mines under the ruthless Kargal Empire. Each year, slaves are hunted for sport in the deadly Hunting Games—a fight to the death on a savage alien moon. This year, Kiro is chosen to play. Sent into a wilderness filled with monsters and traps, survival seems impossible. But something ancient watches from the shadows—and it has plans for him.

I was a failed experiment

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).

She, Xue Fanxin, a famous medical genius in the 21st century, had transmigrated into the body of the dumb daughter of the Grand Duke.