I Am the Nanny of the Villain - Chapter 86:

An RPG gamer who played the realistic VRMMORPG ‘The Amber Sword’ for years, finds himself teleported to a parallel world that resembled the game greatly. He takes on the body of an NPC who was fated to die, and with the feelings of the dying NPC and his own heartrending events in the game, he sets out to change the fate of a kingdom that was doomed to tragedy.

- Description from novelupdates

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.

“Mr. Joseph, what are you thinking?”

“I am thinking about you.”

“You … you are full of sweet nonsense!”

Enjoy a sweet love story of fun, with a scheming, domineering yet cute male lead, and a cunning, greedy and untamed female lead

Everyone knows that the eldest young master of the Fu family is cold and noble, sinister and cunning.Few people know that he has loved a woman for over ten years and even has a child, making him a true hypocrite.Until one day, in front of the media and under the spotlight, he holds the woman firmly in his arms, tender and affectionate—“Marriage, children, the whole package. After so many years, you still refuse to take responsibility for me?”