Return of the Runebound Professor - Chapter 600:

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.

[MATURE CONTENT]Abigail Snow accidentally caught her fiancé being intimate with her sister. She learned that her fiancé had only used her to advance his business and had never truly loved her.Heartbroken, Abigail called off the engagement and left everything behind to start a new life with nothing. At her lowest point, she met Sawyer, a hidden tycoon who helped her rebuild her life and seek justice against those who made her suffer.As Abigail begins to fall in love with Sawyer, his childhood sweetheart reappears, causing doubt and confusion for her.***Excerpt:Whoever this man was, he was her savior. If he hadn’t held her hand and pulled her, she might have become dead meat and gone straight to the afterlife.“Thank you so much, good sir,” Abigail said softly as she finally looked up to see him.Abigail was stunned.“But I'm not planning to commit suicide. I tripped over my own feet,” she continued, avoiding eye contact. She stared at his chest—her line of sight only reaching his sturdy chest.“It sounds better to hear that, Miss. Because I don’t want to go to the police station to become a witness, or they might wrongly accuse me as a suspect,” he said with a sarcastic tone that caused Abigail to stifle a laugh.“Sir, I’m so grateful you helped me. You are my savior. I owe you my life—” Abigail paused, taken aback by her own words.How could she make such a deep vow to this man!? This man might take advantage of her if he was a bad person. Right?“Alright, young lady, you’re supposed to release your tight embrace on me. You’re safe now.”Abigail was utterly shocked to hear his words. She only realized she was still in his arms, her hands tightly wrapped around his waist, and her entire body pressed against him. They were so close—close enough to hear his loud heartbeat. She quickly took a few steps back.

She was originally an assassin. After rebirth, she was reduced to another world’s Di family’s most inferior concubine-born daughter. With an extremely hideous appearance and no way to cultivate, she was the object of everyone’s humiliation and bullying.

However, the timid idiot turned over a new leaf. She took control of her own fate and became a domineering, fierce, and demonically beautiful girl. She became a shocking talent and stunning figure in the world, returning blow for blow, blood for blood. With a kill, she became famous!

Even for the smallest provocation, she will take revenge. If someone bullied her, she will return it tenfold! Even to the heavens she will not be merciful! Controlling the mythological beasts of the world, she broke through the Ninth Heaven and shook the whole world!

She freely opposed the heavens. Provoking numerous evildoers, Di Fuyao could only pretend that she was timid and easily bullied with a low IQ, pleading to be let off!

Who knew that the man she provoked, the cold and arrogant evil Ghost Emperor, actually brought the whole world to her just to marry her…

- Description from Novelupdates

Exile Ren?

The start is hell mode?

Fortunately, there are crossing benefits, and it is still a stitched monster sandbox game system!

Liver Emperor Ren? Hamster Ryan? Isn’t this basic operation?

- Description from novelbuddy