Demon King & Hero - Side Story 1 Part 3: A certain demon king’s dream

In Japan of 1992, just after the economic bubble burst, society's public safety began to deteriorate. Xu Tianze finds himself transmigrated into the body of a detective named Aoyama Hidenobu, and the moment he opens his eyes, he discovers himself bound up tightly...Entering the new century, a prestigious magazine proclaimed that although Japan has lost a decade since the 90s, they gained a legendary figure like Aoyama Hidenobu.Regarding this, some Japanese nationals expressed: 'Damn it! We'd rather lose another 100 years than have this traitor to our country!'This book is also known as 'This Tokyo is Somewhat Hot.'PS: The protagonist is a rascal, acting with contempt, decisive in killing and fighting, purely for the thrill, not for the faint-hearted.

Xiao Yu was humanity’s greatest genius, a scientist whose intellect surpassed all others. He saw the signs of Earth’s impending doom a decade before it happened, warning the world of the catastrophe to come. But instead of being hailed as a savior, he was ridiculed, dismissed as a madman by his peers, and ignored by society.Realizing that nothing could change humanity’s fate, Xiao Yu made a decision. He turned his brilliance toward survival. Using knowledge decades ahead of human science, he constructed the first true interstellar battleship—not for humanity, but for himself. And when the end came, he did what no one else could. He abandoned his mortal body, fusing his very soul with the ship’s central computer and escaping into the endless void.Now, drifting through the vast and indifferent cosmos, he is the last remnant of a dead civilization. But he refuses to let humanity vanish without a trace. Why was Earth destroyed? Was it truly unavoidable, or was there something more sinister at play? To uncover the truth, he must push beyond the limits of human science. His battleship is just the beginning. Through relentless technological advancement, he will evolve, forging a warship that can traverse the stars, a fleet that can reclaim humanity’s lost legacy.The universe is vast, filled with unknown civilizations, ancient mysteries, and dangers beyond imagination. But Xiao Yu will not stop. He will find answers. He will ensure humanity’s flame is not extinguished.The journey into the unknown begins now.

“Your stats are lower than that of your average person.”

The weakest by a mile among the otherworldlers of class 1-A, Takatsuki Makoto.

The Heroes and Sages who had cheat skills in his class had went off, and the base set lifespan is 10 years?

The Great Demon Lord is going to revive soon?

I am a Mage Apprentice?

Isn’t the balance way too bad? This damn Isekai is a tr*sh game!

“Want to be my believer?”, the Goddess that told me this has zero believers!

Aah, this is bad…I don’t think I can clear this. The Goddess with zero believers is an incredible beauty, and she is telling me she is imprisoned somewhere and is waiting to be saved. My last and hardest mission is to save the Goddess.

Clearing this Isekai that only has adversities, the story of the weakest mage.