Elf Tensei Kara no Cheat Kenkoku-ki - Chapter 12Book 4: -2: Negotiations Concluded

Cha Myung-jun, a sergeant who neared the end of his military service, found himself confined in the Ministry of National Defense’s bas**ent for over three decades due to his newly awakened abilities, just before the outbreak of war. Spending thirty years as the world’s most formidable blacksmith, wielding nothing but hammers, he skillfully outwits the watchful eyes of the Ministry of Defense to serve the war effort and reset the course of time. Now given a second chance at life, can he lead a successful campaign to avert humanity’s downfall and secure its salvation?

Senju clan ancestral hall, everyone: “I hope that the ancestors will bless me and make my Senju clan great again…”

But the protagonist stared at a photo in the ancestral hall: “Uzumaki Mito looks really good.”

~The personality of the crumbs in the crumbs was detected, “Grass Dungeon” was awakened, the mission goal… to make the Senju great again! Now start assigning you a great mission guide… Already assigned, Uzumaki Mito!

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With a few words, the protagonist carries the soul of Uzumaki Mito, and awakens the very grassy “Grass Dun”.

The magnificent Mrs. Hokage… In order to make the Senju clan great again, to protect Konoha and even the ninja world, and to prevent the protagonist from spoiling this world, I have broken my heart.

- Description from novelbuddy

As a walk-on, he had been the mistress of his sugar daddy for three year. However, they only had met each other for a few times.
As a boss, his sugar daddy had tons of lovers.
The walk-on: The cake shop is the only thing I love in this world. Lovers? Never want one.
The boss: No problem. Nobody wants that.
Then, they fell in love with each other…
Shameless playboy x heartless rogue
1v1, this is not a decent love novel.

- Description from Novelupdates

Mu Yangling was reborn in the family of Orion. He thought he could live a simple and happy life. Who would have thought that a military disaster had nearly destroyed their family. His father was classified as a military household, and their family accompanied them to farm the fields.

Unfortunately, they could not even tell the seedlings of grains. Qing, looking at his mother and younger brother who were about to cry without tears, Mu Yangling raised his chest and said, “It’s okay, I have the strength” and some agricultural theoretical knowledge from a thousand years later.

- Description from novelbuddy