MTL - Fairy Tale - Chapter 295 found it

Earth Online – a virtual MMORPG that takes place in the future year of 2190 – a game that everyone will bet their futures on. Set in a map that is ten times the size of real-world Earth, players battle for supremacy in the first game to feature personal adventure, territory construction, and grand warfare. For every death you experience in the game, your level would drop back to zero. Ouyang Shuo, an above average player, suffered the ultimate betrayal. For merely a piece of equipment, his sworn brother betrayed and backstabbed him. This time, after he reincarnated in the game, Ouyang Shuo swore to exact vengeance.

However, in an unexpected turn of events, Ouyang Shuo found himself back five years before the betrayal – right before the launch of Earth Online. This time, armed with the knowledge from his past life, Ouyang Shuo would venture upon a new path.

How to perfectly complete quests? What historical battle maps would appear? How should one build up their territory? Utilizing the experience from the predecessors of his last life, Ouyang Shuo makes his bid for the top against all odds. Follow his journey as he seeks to lord over the world!

A different kind of tale that blends historical characters and virtual reality gaming, with heavy emphasis on kingdom building and warfare.

- Description from Novelupdates

Hua Jin Lan, a 21st century assassin, was tied up by her sister and thrown into the sea. When her eyes reopened, she had became the daughter, with the same name, of a martial arts family in the Yue dynasty. Some say that the daughter was worthless and just a pretty face; some say she was shameless and proposed to 5 different men a total of 10 times; some say she was a ruthless person and when unable to obtain love she turns to love potions. She was exposed thus while bearing both shame and resentment she jumps into the river and commits suicide……Wait what?

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.