Demi-human Girls Completion Manual - Chapter 66 - 57

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.

Has my life been for nothing?I asked myself that question as I fell into the eternal embrace of death, having tumultuous waves of regret washing over me. But, in a strange twist of fate, I found myself awake once more in the body of my fifteen-year-old self.What kind of sorcery is this?The existence of the Leviathans and their mystical powers is all shrouded in mystery.But none of it matters to me.What matters now is that I can finally pursue the dreams and aspirations that I set aside in my past life. This time, I will ensure to live true to myself, without restraints or regrets.I will be free.Tags: Regression. Fantasy. Action. Adventure. SliceOfLife. Mystery. Time travel. NoHarem. WeaktoStrong. Antihero. Academy.

【 WARNING: 18+ CONTENT 】Jace had nothing. No money. No job. No future. Until a mysterious System appeared:“Spend on women. Earn it back, multiplied.”Now, every date is an investment. Every night is profit. Double. Triple. Quadruple.Luxury cars, penthouses, designer suits. All within his grasp. And the women?✓ The influencer who once said, “Only rich men, no love.” Now she’s head over heels for him.✓ The single mother next door, who needed help, and the daughter who wants his love for herself.✓ The proud CEO who thought she could control him, now serves as his obedient secretary.Power. Wealth. Women.All he has to do is invest and indulge.(All characters are 20+ years old.)