World Development System - Chapter 38

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.

Have you ever wondered what a character in a novel or in a game should be?

Do they eat? Sleep? Do they have their own life when you are not reading or playing?

They do not.

When you are not doing anything, we stay still.

To be fair, think about your own life. Is it different from a game without a system? You can not see behind your back, similar to how a character has to render it in a game.

But at least, you have your own life.

While I have to watch the protagonist of the novel find his way into the pants of the female leads.

This is my destiny.

I'm not jealous. Not at all.

Here martial arts are no longer intangible legends. They have been passed on from generation to generation and from century to century. After the confrontation with science and technology, they have completely integrated into modern society and all kinds of martial arts competitions are taking place across the country as superiority among scholars are hard to reach a consensus but not as difficult among martial artists!

Lou Cheng has found an unknown cultivation item that fuse with him and help him for the first part of martial arts, the meditation.

Towards his original dream and the glory in his heart, he will advances step by step, becoming the warrior of this modern city and the hero of the era!

- Description from Novelupdates

Over a million years ago, the first human contracted with the first Spirit. Ever since then, Spirit use has become commonplace. Humans used Spirits to carry items and start fires. Eventually, even start wars. Thousands upon thousands of years past and one day, one human did the impossible. He transcended his mortality and ascended to the realm above.