I’ll Be the Male Leads Sister-in-Law - Chapter 277

At 79, Adom is an old mage who has known nothing but illness and regret. When the world finally burns and all hope turns to ash, at the last beat of his fading heart, a mysterious being appears in the dimming light with a simple question:“If you could try again, would you?”What's left to lose when you've already lost everything?A handshake seals the deal, and Adom wakes up on his old school grounds, sixty-seven years in the past. When everything is still possible. A second chance with all his knowledge intact, his memories preserved, and his youth restored.This time, Adom wants it all: to feast on food he's never had, to travel a world still full of wonder, to finally live the life he dreamed of. There's just, as always, one small catch—he needs to prevent the end of the world first.But as Adom will soon discover, changing history might demand sacrifices even greater than watching it burn...

Chang Xia is an anomaly in the tribe——

She doesn’t dress up, make friends, or play around. She likes to hoard all kinds of wild vegetables, and she doesn’t eat meat, saying it’s unpalatable. The whole tribe was worried that she would not grow up and die.

When she became an adult, she directly picked up a sick seedling and married her.

later.

Chang Xia used the hoarded wild vegetables to farm and feed the entire tribe; she built houses and roads, so that the tribe would no longer suffer from cold and freezing; she also conquered the entire ancient continent with delicious food.

Finally, the clansman knew that the sickly seedling beside Chang Xia was once the most powerful totem warrior of the tribe. At this time, the clansmen understood that Chang Xia was the most powerful.

- Description from novelbuddy

Kim Jeongjin, an editor of a publishing company on the brink of closing due to bankruptcy, ends up transmigrating inside a fantasy novel as the incompetent youngest son of a wealthy family.

And here he thought that he should live a rich life in this life…

“Why was I given a high-level skill? Don’t even bother!”

Dragon 5th is a powerful lord with incredible martial arts, and yet is wasting away from a fatal disease. The only medicine which can cure his sickness lies in the clutches of his venemous ex-wife, Madam Lovesickness, and is guarded by 7 dangerous killers, fugitives of the martial world. To retrieve the antidote, Dragon 5th hires Liu Changjie, a skilled martial artist who loves drinking and women, but has a mysterious past. All is not what it seems in this wuxia heist story.