DxD - Multiverse: Daily Life Of The Sephiroth Hero - Chapter 64

I am the sword.
Killing a man amidst a thousand miles, no one dares take ten steps.
Killing a man amidst a thousand miles, no one can take ten steps.
Killing a man amidst a thousand miles, ten steps? Not possible!
I am the sword, the sword is me,
On the path towards heaven, each shall wield their own.

High school student Mikoshiba Ryouma was summoned to a different world in the middle of a war. Sensing the malice from the one who summoned him (a summoner of the O’ltormea empire), he uses his martial arts to run away, killing important people of the empire during his escape. After the escape, he rescues two twin sisters from the hands of thieves. The sisters who can use magic, swear to serve him as subordinates. Thus, Ryouma begins his journey on the path of the supreme ruler.

Everything functions in a cycle, be it an ant, bird, lion, human, or even a celestial body.This cycle initiates with one's birth and governs one's end, yet there exists the potential to surpass it.Among the billions of planets floating in the cosmos, destined to merely occupy a void, some have the capacity to ascend, reaching new dimensions, standing shoulder to shoulder with realms like Heaven and Hell.---Vlad, a young man, found himself ill-fitted in a world that scarcely offered him any luck, weighed down by a mysterious secret that initially seemed more of a burden than a boon.Yet, the powers he had dismissed as trivial eventually became his most formidable strength when the apocalypse broke, unleashing literal pandemonium as angels and demons walk among the human race.

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.