Demoness's Art of Vengeance - Chapter 5: Nineform Spirituo-Demonic Refinement Technique

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.

After traveling through Hokage, Mo Yu originally planned to live in peace, but he was bound by the editing system, so the world changed drastically, and the whole ninja world was in chaos!

[Top Ten Sao Operation Inventory]

[Ten mouth escape scene]

[Ten scenes of pretense and slap in the face]

…

Danzo: “In one battle, I made four lists?”

Payne: “What? Naruto said I was dead?”

Sakura: “It’s so miserable! Pretending to be aggressive was slapped in the face list, and Sasuke took care of it!”

Uchiha Madara: “The strongest ninjutsu list, the first place is not reincarnation eyes?”

- Description from novelbuddy

A girl who calls herself a demon appeared before a timid student named Fumio Kijima. The girl claims to be a campaign girl from the demon world and she gives him the ability to “summon a room” from nothing but thin air.

At first he doesn’t abuse his power and uses it as a convenient ability in his every day life. But one day he is bullied by his classmates under a false pretext and is made to suffer. In the past he would have wallowed in misery and cried himself to sleep, but now he had a power to call upon.

“I will make them regret it!”

Using his powers to summon his “room”, he begins his era of confinement and brainwashing to achieve his goals.

He had never invested in shares or bought a lottery ticket, and neither did he have any experience in the general business industry. Lu Li found that the only thing he could do was play games.

Luckily he had experienced rebirth, and was one step ahead of everyone else. Luckily, games had been developing extremely quickly, and there were many people who had become rich through playing games.

In his ‘past life’, he had spent countless nights awake, in grief and anguish. However, although all of this had been washed away, so what…? This life, he was determined to make a fierce counterattack against fate and stand at the very top!

- Description from Novelupdates