I'm 90 years old and the system tells me it's time to create harem - Chapter 23: We’ll go to hell together!

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 Age of Celestials has arrived.

In the world where Vincent was sent into, the existence of Celestial Beings greatly stimulated the advancement of humanity. With their help, the humans started breaking out of their shackles as they exceeded the limitations of their mortal bodies.

They have passed down mana cultivation techniques and various combat arts increasing their strength as they fought against the true enemies of the world…

However, as Vincent was sent by his grandfather to complete a very unusual mission, he learned that these majestic Celestial Beings weren’t gods or existences out of his reach… They were actually tools or weapons that humans have been using for their own greed. More than that, he discovered the true origin of the Celestials!

Hence, with the help of his System, he mounted a rebellion…

She transmigrated into the body of a little girl from a fishing village! Her father is honest and foolishly filial, while her mother is weak and ill. Moreover, her siblings are still young children.

Her father was the best fisher in the village and breadwinner of the entire family. However, when he got injured and was on the verge of death, her cruel grandparents and uncle kicked her whole family out. They were hungry and cold with nothing but an empty house…

But that’s ok! She has a multicolored stone that can accelerate the growth of crops. She was also an expert at preparing braised meat in her previous life.

Just watch as she, an eight year-old girl, challenges the taste buds of people who lived during ancient times. With improved high-yielding crops, she’s going to become the most famous farming expert in the world!

Plot Summary: This novel combines the popular “villainess” genre with the contemporary concept of VTubing, where the protagonist, a typical villainess character, becomes a VTuber—an online persona using a digital avatar. As she navigates her dual life, her influence extends beyond the virtual world, leading to increasingly violent and chaotic consequences in reality. The story delves into the psychological impact of living a double life and explores themes of power, manipulation, and the dark side of internet fame.Why Read It: The novel offers a fresh and thrilling take on the villainess trope by incorporating modern digital culture elements. It’s particularly appealing to readers who enjoy stories that explore the darker aspects of fame and influence, with a unique blend of fantasy and real-world issues. The narrative's intense and sometimes graphic nature sets it apart from more conventional stories in the genre, making it a compelling read for those looking for something different.