Demonic Dragon: Harem System - Chapter 520: Why are you here?

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.

In a time when the Divine Prefectures of the East Sea were in great disarray, Emperor Ye Qing and Donghuang the Great appeared to save the day. Under their rule, the prefectures united and all nations as well as their kings have been controlled. However, the legend of these two great heroes becomes altered when Emperor Ye Qing’s name is wiped from the history books after his sudden death. All statues and images of him were destroyed and his name a taboo. Only the legend of Donghuang the Great shall live on.

Fifteen years later, a young man by the name of Ye Futian begins his journey in search for his true identity. The legend of Futian was going to be one for the history books.

Is a flower demon with three hundred years of cultivation.

Shao Zi’s biggest wish is to beat up that egghead Scholar (shu sheng) that always comes to water plants at noon.

But when she got close and rubs her hands in preparation for action, she realizes that she’s clearly playing along to someone’s rhythm ah!

- Description from Novelupdates

As a rising Formula One race car driver, Ye Ci had always been criticized.

“Aloof and indifferent, unable to be reasoned with.”

“Suspected to have a mental illness, is this person really suitable for the track?”

“He doesn’t really love the sport, racing is just his way of venting his violent emotions.”

Huo Tinglan’s demeanor was always elegant and protective in front of the media, and he said that his husband was just quiet and introverted. After five years of marriage, they respected each other and were quite harmonious.

It was not until Ye Ci died unexpectedly during a race that Huo Tinglan gradually realized . . . . . .

He wasn’t quiet and introverted, but instead lifeless. Before finding his refuge, Ye Ci had gone through too many dark and painful moments.

After enduring years of suffering and longing, Huo Tinglan was unexpectedly reborn. Ye Ci was only eighteen years old this year, and everything was within reach.

Huo Tinglan was cheeky and went directly to his door to ask for a kiss.

- Description from Novelupdates