This is really not mechanical ascension - Chapter 737 - 383: Countermove by Countermove, Holy Castle Hard to Find

The ordinary 18-year-old Edo, during a nighttime walk, finds himself in a fantasy world where he gains a mysterious power that could shape his destiny.

This is the story of a modern sailor who was accidentally reborn as a soldier of the Brazilian Expeditionary Force, and finally became the largest plutocratic family in Brazil by virtue of his foresight.

- Description from novelbuddy

After marriage—On Valentine's Day, Han Jingnian asked, “How are we spending today?”Wrapped up in her blanket and close to falling asleep, Xia Wan'an mumbled, “Sleep.”On Christmas Day, Han Jingnian asked, “How are we spending today?”With her arms around her pillow, Xia Wan'an casually replied, “Sleep.”On their wedding anniversary, holding a cup of water, Han Jingnian asked, “How are we spending today?”Cozied up in bed, with sleepy eyes, Xia Wan'an looked at Han Jingnian, wary of the water he might spill on the bed. She thought for a moment, then replied, “With you... together.”

An invasion like no other.
Dragons destroying everything in sight.
A new world rising from the ashes.

Blake lived through it all before he died, but now he was back, back to the time before things had ever happened.

A strange place with a strange girl....

Blake had no idea how it happened, but he suddenly had one of the enemies of mankind, a dragon girl, as his girlfriend.

--Extra Info--
Yuri tag is for his wives. Everyone in the harem will love each other.

Extra tag: NO NTR

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