Ihoujin, Dungeon ni Moguru - Chapter 4.2: The Foreigner, Can’t Explore the Dungeon III

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.

Regaining the memories of his previous life, Cyril realised that he was an otome game’s character, the villainous daughter– Sophia’s butler.At the rate things were going, Sophia would eventually have the prince stolen away from her by the heroine, fall into darkness, and be executed.Wanting to save the villainous daughter he was so fond of, Cyril moved to eliminate all the factors that would cause her to fall into darkness, raising her up to be a talented and beautiful girl who could win the prince’s love, however…

so, reincarnation huh?“a lot of good... a lot of bad... balanced karma.” “good news you get one boon to bring with you to the next life. unfortunately for you though, you don't get to choose. totally random. ready?”join Apollo in his new life where through sheer luck (good or bad?) is raised by an all hungry, all dominant and all loving hivemind who will burn the galaxy just to see him smile.

“My turn, draw cards”

“It’s better to use this one if you’re fighting”

Looking at the card in his hand, Yue Si gave a villainous smile.

- Description from novelbuddy