Loser System and Berserker Me - Chapter 9: Scraping It Clean

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.

After traveling for three years, Lin Yu was drawn into a horror game unexpectedly.

However, he discovered one thing.

The dungeon boss feared by countless players turned out to be the little loli who called her big brother next door.

then.

In the horror hospital, the director of the hospital turned out to be the uncle downstairs who made him and his granddaughter fall in love.

In the bloody slaughterhouse, the existence known as the bloody butcher turned out to be the uncle upstairs who wanted him to be his brother-in-law.

In Changteng Ghost School, the woman who frightens countless students is actually the long-legged sister Yu who invites her to her house for dinner whenever she has nothing to do.

…

Traveling through three years, you told me that this place is actually a horror game world?

(Introduction is weak, please read the text)

- Description from novelbuddy

If I were to fall into a game, I wish I would fall when I was young.

Traveling through Marvel and transforming into a girl, fortunately inheriting the broken godhead of Athena, the goddess of war and wisdom in Greek mythology.

When encountering a crisis, turn into the Goddess of War Wisdom, wear noble and gorgeous sacred clothes, hold the scepter of the Goddess of Victory and the Shield of Justice, form a saint warrior to protect yourself, create a sanctuary, and stand tall in the heavenly city and hell against all invading enemies.

Tear the sky, smash the earth Eighty-eight saints fought passionately for the goddess and the enemy, killing all hypocritical gods and demons who covet the world.

Kyle will lead his saints to the top of the universe, surpassing the five major gods and becoming the main god.

(It’s not too much, ten changes a day, just flowers and a monthly pass. The more flowers, the more motivation.)

- Description from novelbuddy