The World Is Ending And I Am Surrounded By Female Zombies - Chapter 18

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.

*Fast paced fast slapping modern novel*Jiang AiLin, known as Miss Fox. Why was she called as Miss Fox? It's because she had killed someone while pretending to be the only daughter of the famous Jiang Family.It turns out, from a young age she was pretending to be the daughter of Jiang Family. When her identity was revealed, instead of apologizing she burned the whole house of the Jiang Family, causing for someone to be killed inside the fire!Heinous! Heinous! Everyone in Beijing had at least heard of this story once, especially the socialites who look down on her for being a Foxy woman whose true self was merely filled with hatred.But that woman had walked out of the prison after serving for six years.And... And she had caught the best bachelor as her lover! The eldest son of the Li Family, Li ZiChen.But she didn't come alone. She had came back with a revenge plan, to pay blood with blood.Yet why does this man knowing the people she had killed still agree to love her?!

A reputation as ‘The Most Feared Gunslinger In the West’, and the Law hot on his heels, Henry Morgan had lived a full life. So when it all ended with a gunshot to the back of his head, he was quite ready. He embraced death… He embraced his end.Except it wasn’t the end…Some mysterious [Powerful Forces that be] wrenched him out of the world he knew and deposited him into the body of a version of himself in a Parallel world. A world where something as ‘impossible’ as Magic apparently exists.These [Powerful Forces that be] went a step further by granting Henry a System and issuing him strange prompts and Quests that send him down a road of Adventure and bloodshed all so he can etch his name in history and show this world and its many ‘wonders’ just how deadly a Gunslinger can be…

One day, Luo Jian woke up from his sleep and found himself in a locked chamber where the door and window were all sealed. A note with a few lines written on it was tacked to the wall: “Escape from this room within an hour, otherwise, you will die.”

There is a sequel called Reincarnation Night (轮回之夜) that takes place in the same universe but has different main characters

- Description from Novelupdates