Arifureta Shokugyou de Sekai Saikyou (WN) - SS Kousuke

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.

Once she woke up, Su Tingyun had become a 70 year old granny.

After resigning to her fate with great difficulty, deciding to become a rich family’s esteemed mother and residential big boss, she didn’t expect that the scenario would change again.

That husband of hers who had died on the battlefield was now the cultivation world’s deity, and sent people to pick her up for celestial cultivation?

Fine, she’ll cultivate, but how did she accidentally cultivate into someone else’s body?

Changing old patterns up and playing swapping the frame…

Young man, granny is 70 this year, is your taste heavy enough?

- Description from Novelupdates

Once a young business prodigy, Violetta’s company crumbled fast thanks to internal corruption and the greed of the more successful elites.Now, she’s a certified 31 year old dirt-poor shut-in, living her best (or worst?) life as a full-fledged otaku.With nothing but her anime merch and a shaky Wi-Fi connection, she scrapes by on streaming money, all while dodging the harsh reality outside her door.However, after an all-nighter to play Merlysian Realm, a newly released VR MMORPG, she died from her unhealthy lifestyle and passed out.[SYSTEM ERROR: 404 - ACCOUNT NOT FOUND][Rebooting...][Loading...[ERROR: SYSTEM MALFUNCTION. PLEASE WAIT.].....[SYSTEM MESSAGE][You Have Received A Legendary Class][User's account balance has been updated.][Balance: UNLIMITED][Class: Merchant][Rank: SSS]“Huh?!”Not only was she transmigrated into Merlysian Realms, she was reborn in a struggling farmer's family that lived in poverty from a poorly developed kingdom in medieval times!The real kicker? It’s crawling with corrupt nobles, dying crops, zero trade routes, and is so tiny it could probably fit on a map as a dot labeled “Who Knows Where.”Can our otaku-turned-financial wizard save this sinking ship of a kingdom, or is she doomed to relive her bankrupt nightmares?Watch as she proves those who doubted her to be wrong and be accepted as a genius by using her knowledge from the modern world!

I was transmigrated into a webtoon based on an alternate history of a shitty empire.‘I will overthrow this country with my own hands.’And the answer I arrived at upon experiencing it was ‘Coup D’état’.