The Mad Dog of the Duke's Estate - Chapter 357. The Core of Sin (1)

When traveling back to Japan's late Muromachi Era, how to survive becomes a significant challenge!Now, Harano must live well under this high-difficulty challenge!

Ye Qingzhou, a swordsmanship prodigy from the Earth, is blown by a cruise missile to the Blue Star, a world flourishing in martial arts, embarking on a journey to seek the ultimate realm of the sword.“Where is this?”“Of course, this is the school's medical room.”“Medical room? I think I just got hit by a cruise missile...”

He was summoned to save the world… but his greatest threat isn’t the Demon King — it’s the women who love him.Kai Veyron was just a delivery guy on Earth. But in the magical world of Aethria, he’s “The Chosen Hero” — gifted with ridiculous, godlike powers that he can’t control and didn’t ask for. He defeats monsters by sneezing, trips over relics that explode, and somehow charms every powerful woman he meets.Now surrounded by a beautiful, deadly harem — a tsundere princess, a cold-blooded assassin, a genius mage, a seductive demoness, and a broken childhood friend — Kai thinks he’s finally found purpose, friendship… maybe even love.But peace has a price.As whispers of prophecy grow louder, the women begin to ask the unthinkable:“What if the hero himself is the final calamity?”They laugh with him by day… and plot his death by night.And the worst part?Kai already knows.And he still protects them — even if it means his own downfall.

Lin Jiang travels through the world of cultivation and obtains the Lifespan Check-in System.Check-in for a day, gain one year of lifespan.This nearly infinite lifespan allows him to live tens of thousands years, bearing witness to numerous lives passing by, their joy, grief, and everything in between.He has persisted from the Stone Age to the Cosmic Age and ranges from cultivation to science. He is there, always there, as the eternal guardian of mankind.(Not a dark and thrilling story, be cautious)