Reborn As Papa Silva - Chapter 90: Depressing and Bittersweet

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.

At 20 years old, Su He married Mr. Jiang, a business tycoon with billions to his name, proudly hailed as a business mogul. Upon learning of this, people said that she, a country bumpkin lacking background and wealth, was merely a poor doctor with a beautiful appearance, unworthy of the esteemed Jiang family head. Gradually, however, people discovered that this 'poor doctor' with 'no background' was in fact the jewel of a prestigious medical family in the capital, an expert surgeon in the medical field, an heir to a medical research institute, and a mysterious designer... Everyone knew that within Mr. Jiang's heart, there was a cherished figure. As the four-year marriage agreement neared its end, the man handed her a document, his tone gentle yet assertive: 'Sign it!' 'A divorce agreement?' Su He asked, her eyes bright with unconcealed excitement and anticipation, having longed for a divorce. The man snorted coldly, 'Just sign it!' Not long after, Mr. Jiang reneged, stating: 'Since you've given birth to my child, you'll be mine for life!'

After accidentally falling, she actually finds herself bound to a Second Female Lead Counter Attacking System!

In a romance novel called “The Secret Lovers of the Academy” the male lead would often torment his fiancée–but wait, why did she cross into this world to become his fiancée, the villainess, instead of the heroine?