Suterareta Yuusha no Eiyuutan - Story 4-4:『Claria’s Religion』

Prince Heixinggen from the Swabia branch of the Hohenzollern family sees the turmoil in Europe and the impending war, deciding it's better not to stay.He embarks on land acquisition in East Africa, focusing on immigration and development, laying the foundation with agriculture, taking one step at a time, and leveraging the crisis to achieve industrialization.

She spent the night with the man who destroy her country, fleeing with their child in her arms. With that, she believed their relationship had come to an end. “Even if he’s another man’s child, even if he’s not of my blood, or even if he’s the child of a bastard, I’ll raise him as my own.” Until he came to her with eyes as ferocious as a beast. “Don’t even think about running away using the boy as an excuse. I’m still struggling to control the urge to crush the little creature that took you away from me.”

In the current era, people are either normal or are with ‘special abilities’. Cases related to the latter are managed by the “National Anomaly Prevention and Control and Special Species Management Office”.
Qi Zheng Emperor Sheng Lingyuan was reawakened a thousand years later after he jumped off the fiery Red Lake. Xuan Ji, a newly transferred staff to the Reparations Division of the Deviant Control Office, finds himself having to clean up the mess of a revived tyrannical monarch. The two seemed to share something from the past, but unbeknownst to them, a big conspiracy is stirring right underneath their noses that could destroy the balance of the world.

- Description from Novelupdates

[Apocalypse] + [Rebirth] + [Hoarding Supplies] + [Surviving] + [Infinite Space] + [Dark Revenge & Non-Saintly]The world enters an Ice Age, ushering in an icy apocalypse where 95% of humanity perishes! In his past life, Zhang Yi was killed by those he had kindly helped, due to his benevolent nature. Reborn a month before the ice apocalypse, Zhang Yi awakens a spatial ability and begins to hoard supplies frenetically! Running out of supplies? He empties the warehouse of a super-mall worth billions! Uncomfortable living conditions? He constructs a super-secure dwelling comparable to a post-apocalyptic fortress! As the apocalypse arrives, while others freeze like dogs and would abandon anything for a bite to eat, Zhang Yi lives even more comfortably than before the apocalypse.Green Tea b**ch: “Zhang Yi, let me into your house, and I promise to be your girlfriend.”Rich Second Generation: “Zhang Yi, I’m willing to trade all my wealth for a meal at your place!”Beastly Neighbors: “Zhang Yi, you should share your supplies with us, don’t be so selfish!”……Watching these people who betrayed him in his past life, Zhang Yi lies comfortably in his safe house, living a carefree life as if in a paradise.Zhang Yi: “Why should I care whether you live or die? I would rather feed my things to the dogs than give them to you!”