Maybe a Fake Gintama - Chapter 577: Command Owed to Oppression

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.

Reborn in 1992, he supported the college student wife Ben and Shuo to study in a row, but she was not allowed to* after ten years of marriage, and she was scolded for peeking when she was washing her hair!

“You’re my wife, what’s up with you washing your hair!?”

“Sneak peek?! You gave me that stealing word!”

“divorce!”

He Hongchang slammed the door into anger and slammed away, but he plunged into the mouth of the hurricane where pigs can take off, and became a trend-setter of the times!

- Description from novelbuddy

[IT'S NETORI - MC steals women and doesn't get NTR'd!]Leo Anderson, a playboy with a preference for NTRing other men, is abruptly summoned, along with others, to a game-like fantasy world. Given the Charm System—he seeks to live this new life as he pleases. And so he begins his journey on the path of cucking numerous men!Super Gift = three extra chapters.Covers been banned until the 18th by the company.

Ling Lang is thirty-two years old and an A list movie star. He is also the youngest to become the king of the silver screen. Known for having a cold and aloof disposition, people nicknamed him king iceberg of the silver screen. His biggest secret? He is a masochist down to his very bones.

- Description from Novelupdates