Was it you that night? - Chapter 76 - 74 Vows of Eternal Love End in Vain

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.

Jing Yan, a once top-performing genius of the Jing Clan who broke through the rank of Ninth Heaven of martial arts and entered the Precelestial Rank at 16, was second to none in Dong Lin City. Yet out of nowhere, his rank dropped dramatically after he was enrolled in the Wind God Institute and became the object of ridicule.After breaking the seal of The Ring of the Universe, Jing Yan was reborn. He finally became the conqueror of The Mainland of Tian Yuan and became the man countless warriors looked up to.

Noah Brown had a gift for fighting. Unfortunately punching things didn't pay the bills, at least until he died and an Eldritch god found his soul. The encounter led him to a new world, summoned by bloody cultists, with nothing but the shirt on his back, and a strange item in his system menu.

[???] : A source of infinite potential.

Perhaps he'd finally get to put his gifts to good use.

Qiaosheng, you are the one who saves me, yet you are also the one who gives me hell. If we cannot grow old together, I’d rather we’ve never met before.

- Description from Novelupdates