MTL - A Demon’s Path - Chapter 767 Strange disease

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.

‘I died and became an extra in a male-dominated fantasy novel. The only problem was, I hadn’t read the novel to the end. One thing I do know is that a terrible future awaits me, and thus, I, now Dalia, have decided to live a safe and prosperous life for the rest of my time here.

Since I don’t know what will happen, I will be a bystander observing the main character from the sidelines… I’ll make my own happy ending away from the main plot!’

With that determination, Dalia embraces the role of an extra. And like all extras, she clings to a golden thigh: Kaichen, the powerful wizard who is unwaveringly loyal to the protagonist.

For Dalia who wants to have a happy ending, it was imperative to extract herself from the novel’s plot… Yet her calm life is shaken when a flirtatious romance begins to bloom between her and her golden thigh.

Will she be able to resist the temptation?

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates