I Have a Door That Can Cripple the Ever-Changing Demon Lord

[Not AI] [Grounded Sci-Fi] [The Protagonist Never Gets Pushed Around] [A Touch of Ensemble Cast] [Semi-Macro Narrative]

My name is Wang Sun. I'm from Blue Star, and I suddenly gained an ability that works like a portal.

Because of this ability, I became a living battery for Sea Star.

"What was that beam of light?"

After I narrowly escaped, a neutron strike fell from the sky and erased everything on Blue Star.

I didn't die. Instead, I became a four-dimensional mental entity.

A Gray Wind of the first generation passed everything she had on to me.

"Wang Sun! You demonic martial arts fiend! You broke the rules and killed the Huashan Sect Leader!"

"Master Wang Sun, lead us maids beyond the finite universe!"

"Wang Sun, this is the new era. Will I, Yin Xueyao, satisfy you?"

"Wang Sun, human of Blue Star, your actions constitute an act of aggression. I represent Light Star and have come to investigate whether humanity deserves to exist. The decision is yours!"

"So this is another world? As expected, it's full of beautiful girls!"

Wang Sun observes the multiverse and chooses the other world he likes best for a vacation.

Currently on Volume 4: The Republic of China, a super martial arts world under the rule of the five nations that divided Blue Star.

Volume 5 preview: The Maid Lord's Great Breakthrough Across the Universe!