Reincarnated 7 Days Before the Calamity: I Stockpile Supplies and Build the Ultimate Battleship.

A catastrophic apocalyptic deluge engulfed the entire globe overnight, triggering endless raging floods that submerged a staggering ninety-five percent of Earth’s landmass. Terrible storm surges and continuous torrential rains drowned cities, swallowed mountains, and wiped out human civilization’s long-standing prosperity. Under the brutal baptism of the great flood, less than one in ten humans managed to survive, with most falling prey to harsh flooding and terrifying aquatic predators. In my painful past life, I endured the darkest betrayal at the hands of those I loved and trusted deeply. My girlfriend abandoned our bond without hesitation, while my childhood friend secretly plotted against me out of selfish greed. Stripped of all supplies and shelter, I ended up helpless and alone, becoming mere fodder for ferocious mutated sea monsters roaming the endless flooded wasteland. Against all odds, I am granted a precious chance at redemption, reborn exactly seven days before the devastating deluge arrives to reshape the world. Carrying the searing pain of betrayal and the regret of a worthless previous life, I make an unshakable resolution: this time, I will cast aside all foolish sentiment and live solely for myself. With complete foresight of the upcoming disaster, I seize every minute of the final peaceful days to prepare frantically. I spare no cost to stockpile endless reserves of food, fresh water, fuel, weapons and daily necessities, while devoting all my resources to constructing the most powerful, fully fortified warship capable of resisting sea monsters and storm surges. Once the doomsday flood sweeps across the world and countless desperate survivors struggle on drifting debris, my indestructible warship becomes a supreme safe haven on the boundless ocean. Many opportunistic survivors come begging for shelter, including the hypocritical green-tea girl who pretends to be pitiful to gain favor, and my scheming stepmother who constantly plays the victim to win sympathy and benefits. Having seen through their false kindness and selfish nature long ago, I remain utterly cold and unyielding. No matter how spacious and powerful my warship is, there will never be a single spot reserved for these two treacherous pretenders. Freed from naive kindness and foolish attachments, I wander freely across the flooded doomsday world on my formidable warship. I surround myself with sincere and genuine companions who truly cherish me, enjoying a stable and prosperous life amid global ruin. Step by step, I grow stronger by hunting sea monsters and seizing ocean resources. I trample every traitor and enemy who harmed me in my past life beneath my feet, completely rewriting my tragic fate and dominating the chaotic apocalyptic deluge with absolute freedom and unmatched strength.