The Incubus System - Chapter 3: Incubus Rage

When The Cute Kunoichis Spied on Their Teacher's Secret is a light novel written by Kazuma Kamachi and illustrated by Ryuushi Tajima.

The story takes place in a world where Japan never ended their isolationist phase, and agents from foreign powers are always threatening to steal the country's advanced technology. In order to combat this threat there has been a resurgence of ninjas that use Strategic Martial Arts, techniques that combine cutting-edge modern technology with a traditional foundation of martial arts and ninjutsu. The story follows Souha Sugiyado, a 17-year old ninja instructor and former ninja prodigy who was forced to retire from active duty by the wounds he suffered in his last mission. Souha's four students are all kunoichi who have all gained the rank of Elite Ninja, the highest official rank available to ninja. However, one day two Shogunate ninja approach him with the news that his four students have gone rogue and have stolen a portable modular nuclear reactor, and thus they ask for his help in bringing his students to justice.

The world has changed into something like a game.

It resembles a survival virtual reality game where people were attacked by zombies and monsters.

And I was the last user of that game.

Travel through the Naruto world and be reborn as a dried persimmon ghost shark.

“As a dam maintainer, I carry two hundred catties of lime with me, which is very reasonable and reasonable, right?”

“The so-called unlimited physique means that you are in charge of physique, and I am in charge of unlimited.”

I kidnapped and robbed, didn’t pay my debts, beat up the elderly, bullied children, attacked others without telling the truth, and often killed my superiors and employers…

But I know that I am a good ninja.

I have the heart of a bodhisattva, the face of a vajra, and the means of demons. I walk in the darkness of the ninja world, but I pursue a bright future where everyone is like a dragon.

I, the dried persimmon shark, was born a miscellaneous fish, and swore that one day, I would smash this boring world dominated by blood theory.

- Description from novelbuddy

Wen Xuxu is a tenacious, talented, smart and brave woman who was fostered by the Yan family at the age of four when she lost both her parents.

Brought up to be the successor of a huge conglomerate, Yan Rusheng is an aloof, intelligent and arrogant man who is the most sought-after bachelor in the capital city.

Despite growing up together, both of them seem to treat each other as an eyesore. She labels him as a jerk and womanizer while in his eyes, she is a shrew.

Over time, they fall for each other, but they continue to conceal their feelings for each other. By a twist of fate, they are forced into a marriage. And unknown to everyone else and Yan Rusheng, she has harbored a deep secret for many years…

- Description from Novelupdates