Hellmode ~A Hardcore Gamer Becomes Peerless in Another World with Retro Game Settings~ - Chapter 644: Earth Labyrinth RTA (13) Shooting Game

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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A failed investor from 2017 got drunk and woke up in the 1980s. China is just opening up, and the economy is blooming. There is also the dissolution of the Soviet Union, the bursting of the Dot-com bubble and other financial crisis. He used his knowledge of the future and slowly build up his empire.

- Description from novelupdates

A world-famous hacker and daughter of the most powerful criminal family who ruled the international underworld for many generations is killed when their organization is annihilated in a single night.

Bought it right away.