MTL - The Sword Deity in Tokyo - Chapter 318 Demon also has good and evil

With his engagement at hand, the most terrifying and legendary person of the legal world, Fu Huai’an, returns with a son.

Before the engagement…

He asks, “Since you love Wen Moshen, why are you in my bed?”
She says, “Because I cannot watch idly as Wen Moshen’s woman enters an engagement with you.”

With a cigarette in Fu Huai’an’s mouth, he crosses his legs. Across the light cloud of smoke, he squints his eyes—watching as Lin Nuan’s slim arms wrap around his neck; he feels stirred.

So a person can love another so passionately.

“You call what you did a kiss?”
“…”
“What a pure lady!”

Fu Huai’an spews out a cloud of smoke and snuffs out the cigarette. With a mellow voice, he says, “Let me teach you what kissing is!”

But, what he teaches Lin Nuan doesn’t seem to be only a kiss…

- 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.

On the night of her coming-of-age ceremony, Nan Zhi is lured into a trap by the people closest to her and falls pregnant.

Four years later, she returns with her son.

A respected and domineering man suddenly barges into her world.

“Speak! Who is the child’s father?”

An adorable child holding a water gun appears out of nowhere, shouting, “Who is this wild man? How dare he snatch Brother Jie’s goddess?!”

From then on, two small domineering brats and a manchild are added to her world.

In the middle of the night, he sneaks into her room, pressing a heated kiss onto her lips.

“Woman, do you know what’s the result of stealing my seed?”

“What?”

“From now on, you have to let me kiss and pamper you everyday.”

Erm… How was her inability to walk the next day, the result of his pampering?