She Lives without Regret in This Life - Chapter 195 - 196 Almost a Star

[Wsa entry.]James Dohan, a famous author working for the government, suddenly died after an accident occurred at his workplace.Nothing could have prepared him for the events to come.[You have reincarnated.]James soon found himself reincarnated into the body of Jared, the son of the village's elder in a demon-infested wasteland.The North, abandoned by a cowardly kingdom after a brutal war, crawled with monsters and desperate survivors. Jared left to save his father with a miracle cure, but James arrived too late—the Elder was dead, the village was starving, and the title of Elder fell on his unprepared shoulders.Luckily, he had a cheat code to rely on.[You have awakened your Infinite Item Shop System.][Current balance: 0 Sp. Buy everything, Sell anything.]Jared found a way to save the people of his village from dying from their own weakness and the horrors of the world.[You have gained 50 Sp.][You have purchased a pistol.][13 Sp has been deducted.][You killed a Dire Wolf.][150 Sp has been added to your account.][The villagers' loyalty to you has risen.][You have earned 300 Sp.][You can now convert this world's money into Sp.]With this system, Jared was more than ready to conquer the North, money, power and women.

Follow Chen Ming as he accepts disciples, establishes a sect, and fights his way in a world that deems him a cannon fodder.
He goes against any common sense using his wits and novel knowhow to finish missions and arm himself against his cruel fate.

- Description from Novelupdates

Based on the popular Vocaloid series, by HoneyWorks, called “Kokuhoku Yokou Renshuu (Confession Rehearsal)“:

Natsuki, a third-year at Sakuragaoka High School, who holds unrequited feelings for her childhood friend, Yuu, who’s in the Film Club. However, instead of being honest about her feelings, she makes him be her confession “rehearsal” partner. Unable to say her true feelings, things start to get complicated when Miou and Akari, who are also in the Art Club, get involved! Will she ever be able to confess for real!?

When a boy in a medieval fantasy world wakes up with the memories of his past life, he discovers a secret buried deep within his mind—a highly advanced AI companion. This AI, a relic of his previous existence, holds the knowledge of a futuristic world filled with technology, science, and innovation.Armed with this unprecedented advantage, the boy embarks on an extraordinary journey to transform his medieval surroundings into a thriving futuristic utopia. From reinventing agriculture to creating advanced cities, he introduces ideas far beyond the comprehension of his peers. But his vision isn't without challenges—power-hungry nobles, skeptical commoners, and ancient magical forces stand in his way.