Kill Me More Times, I'll Become Invincible - Chapter 29:

A man reborn, more interested in his next meal than clan politics, finds himself caught in a power play that could reshape Konoha.Uchiha Masashi has seen it all before - literally. With memories of his past lives and abilities that shouldn't be possible, he'd rather perfect his combat skills than deal with clan drama.But when the newly appointed Fourth Hokage shows up with a proposal to unleash the Uchiha's power beyond their traditional police role, even Masashi has to pay attention. The clan sees opportunity. The village sees profit. Masashi sees the threads of fate that once led to his clan's destruction starting to weave again.As the Uchiha rush to prove themselves “ten times better than the Hyūga,” Masashi walks a fine line between duty and survival.He knows too much - about the Nine-Tails incident that could destroy his clan's reputation, about young Shisui's tragic destiny, about the wheels already in motion.The question is: will he bother trying to change any of it?After all, in a world where even the strongest must sometimes bend to fate, sometimes the smartest move is to grab some dango and watch it all unfold.

A teenager who unexpectedly gets transported to the modern world from ‘the world of the immortals’ . He finds himself in the body of an ordinary guy. He wants to go back to his world and for that, he will have to practice to get stronger and investigate the reason why and how he crossed through to this world.

While she was opening and closing her eyes, Mu Rou Sang had finished her transmigration.

“Her background was miserable, her family was ruined, she had no parents, and she had no brothers or sisters.”

She only had one brother who was dependent on each other.

- Description from Novelupdates

[You have transmigrated, named Gu Sheng, and are a farm boy.][This is a dynasty in chaos, where demons and monsters lurk and bandits run rampant; as someone at the bottom, you face hellish survival difficulties.][You decide to lay low.][You awaken a mastery panel.][You breathe a sigh of relief, you can start grinding.][You grind Chopping Wood to Perfect, chopping bones and breaking tendons with ease.][You grind archery to Perfect, becoming a godlike archer who can hit a louse at a hundred paces.][You learn the Iron Stone Fist, set foot on the path of a Martial Artist, and grind it to Perfect, with punches as heavy as a million pounds.]……[You learn the Longevity Eternal Youth True Art, greatly extending your lifespan, giving you more time to grind, and greater hope to lay low.]……[You grind to the limit, steadily laying low, and one day you suddenly realize, you are invincible.]