Betrayed, I Met The Demon Lord - Chapter 125 – The End Of War, Part 1

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.

“Master, the people from the Zhuang family have come to cancel the engagement.”

“My fiancé whose beauty was said to be capable of causing the downfall of a city, finally decided to throw me away?”

“I think so.”

“I want to see this legendary beauty, and confirm whether this bastard is as really great as people said to have no flaws in all 360 degree, a picturesque appearance however you see him; does he need me to help him open the corner of his eyes (Epicanthoplasty) or reshape his chin (Genioplasty)?”

“Actually, he didn’t come.”

“He didn’t? He didn’t even come to cancel the engagement? What a wicked b***h.”

“He definitely will get karma.”

- Description from Novelupdates

In the waves of steam and machinery, who could achieve extraordinary? In the fogs of history and darkness, who was whispering? I woke up from the realm of mysteries and opened my eyes to the world.

Betrayed by her entire family, Tang Yue, the seventh princess of the snake clan, was betrothed to the tyrannical Elven prince, who is known for his blood lust and cold-blooded murders.He is even rumored to have killed several concubines mercilessly.Deemed as a piece of useless baggage and now tossed aside as a political chip, Tang Yue braved herself for the new torturous life that awaited her.As if this was not enough, someone mysteriously poisoned her in the betrothal ceremony.But akin to a slap in the face, that poison actually turned around Tang Yue’s pathetic life!!Poisonous fruits? Sure give me some. I need to snack anyways.Deadly toxin? Sure. My throat is a bit parched.Heh. Now you want to actually cut me down? Sure. You just have to slash past this thick skin!The lowly beast that had invoked its innate ability to evolve silently resolved to conquer the heavens. And of course, she had a master... ahem... system to help her along the way!