Start With Contracting Sprites - Chapter 31

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.

Mystery is the nourishment that keeps me from being ordinary.

It has been 20 years since he came to a world similar to the modern European background. With his early wisdom, Fei Lin learned a skill and finally became a decent person.

Originally thought that he would marry a wife and have children and live this life in a dull way, but found that there is another world under the shadow of the world.

In that world, there are occultists who practice esoteric techniques and master extraordinary powers.

It is weird to spy on humans in the dark and feed on humans.

There are evil god believers who worship the evil god, please the evil god through bloody sacrifices, and exchange power from the evil god.

There is an evil god who wanders outside the world, peeps at the world, and only infiltrates the power of scales and claws, which is enough to cause people to fall.

With the mystery as nourishment, he is no longer ordinary after 20 years of ordinary.

"When will people understand.... I'm only half insane?"

[Completed & female disguised as male & did the eight-fold mirror of the silent master hit your heart~]

In the eyes of others, Mr. Dumb is cold all over his body, his aura of a big boss frightens everyone, and one look can make you feel like a chill…

In Gu Shen’s eyes, it was a different feeling—-

Xiao Jiu’s waist is slim and her legs are long, she is so cruel and arrogant that she is so cute, even when she beats someone up, she is so cute and good-looking, people can’t help… want to take her home~

…

However, his daughter-in-law’s peach blossoms are blooming, so he can bear with the man, why is his meowing woman here to join in the fun? !

So one day, a certain god quietly blacklisted the coquettish sluts in the silent master’s phone…

- Description from novelbuddy