Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 5 - Intermission: The Work of Manager-san

Lucia grew up not knowing she was a princess.

Extraordinary and decadent world.

Individual power determines order.

The family masters knowledge, monopolizes resources, and increases its heritage from generation to generation.

Fate, physique, spiritual consciousness, comprehension, spiritual roots, Taoist tools…

All elements leading to the avenue have been cut off.

Mortals can’t breathe.

For thousands of years, the order is eternal, and only the true immortals overlook the world.

It was not until a modern man who was constantly reincarnated and enhanced his talents came and discovered the mystery of this world that the world was turned upside down!

Let’s see him walking in history, exhausting time and accumulation, breaking this eternal order, and shining brightly.

Going against fate and killing immortals is on the way!

- Description from novelbuddy

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

Landmines include but are not limited to: Sweet & naive bottom, a president story, logic is dead, slow-progressing romance, the protagonist’s name has too many character strokes, the names are hard to pronounce, too many gay characters…

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.