Astral Pet Store (WN) - Chapter 13: Low

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?

This thought had grown deep in William’s mind!

(1V1, Shuang Jie, Two-way Secret Love, Chasing His Wife Long, Banning Cookies)

(Cold and dumb elite secretary VS paranoid and fierce loyal dog president)

Jiang Mingyu, a well-known all-round secretary in City A, is low-key and humble, with outstanding strength, and is a top talent that no one in the industry does not covet.

But no one knows that she has lost a memory in her brain, so she suffers from a mild emotional disorder and is also troubled by nightmares.

Tang Jinchuan, a terrifying business boss, has a level that must be avoided.

But also no one knows that he accidentally fell in love with his secretary, but he never managed to grasp the other party’s heart.

*

In an accident, Jiang Mingyu found her panacea, but at that time, she didn’t want it.

It was not until she was forcibly pressed against the door of the office and had nowhere to escape that she had to face the man’s gentle and cold question,

“Jiang Mingyu, what are you running for?”

Only later, people still ran away.

The angry-eyed CEO chased half the world, and after finally catching the person back, he directly locked him in the basement.

In the endless reversal of day and night, Jiang Mingyu’s eyes were red, and she couldn’t help trembling and asked,

“Tang Jinchuan, what are you doing?”

“……you.”

- Description from novelbuddy