One Piece : Brotherhood - Chapter 81

This is an alternate history. Decades after the fall of the Eastern Jin Dynasty, the world is still in chaos, although there is hope for reunification.

Science and Technology Library: The supreme state of science is theology; an accidental rescue, let Chen Mo get a technology library that collects endless technology, the story begins…

- Description from xbiquge translation

Xu Yiyang, who was only late in his life when he was middle-aged, returned to 1999 in a dream.

At the turn of the millennium and the turn of the century, he realized a truth:
Not only to be famous early, to start a business and make money, but also early!
………………
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- Description from Uukanshu

Yuan Fangguo, who was reborn and returned to his college days, had nothing.

Fortunately, he stood on the cusp of reform and opening up. Facing the waves of the South China Sea, Yuan Fangguo and his brothers and sisters opened their arms and greeted the wind and waves.

Challenge… He secretly vowed to set a goal. My small goal in life is not to make 100 million, but to let the people I want to help earn 100 million easily.

- Description from novelbuddy