MTL - Longevity Chart - Chapter 154 I gave you a face, didn't I?

The Empress who dies in torture, An Rushuang is her name. After she wakes up, she finds herself has time-travelled to when she was twelve years old, but she would turn into Major General’s white horse at night. He is a general who orders about the winds and clouds on the battlefield, and she is a little girl lives in her boudoir seclusively.
She endeavors to change her fate, and he spared no effort to win every battle. They meet each other every day, well, it’s night to be accurate. Is that a dream or not? She pleads to marry the seignior to win peace for her family, only to find he is the one she is going to marry.
“Growing old with you under the same roof is my long-cherished wish”, thought them both.

- Description from Novelupdates

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.

The day dungeons appeared on Earth, everything changed! From ordinary beasts to monstrous ones, attacks were common throughout the globe, and no one was safe.

After countless studies using these beasts as subjects, Humankind developed a serum capable of awakening incredible abilities in humans, leveling the battlefield.

With the serum came heroes and villains, those who wished to use their powers for good or bad.

The Garmony Upper School was a place for the elite with the sole purpose of creating heroes to fight the villains and explore more of the dungeons after the beast attacks increased for no apparent reason.

Damian Romero, a youth who received the serum after turning 18, yet got no unique ability. It was not uncommon for one to not receive power, but it was still a blow to one's pride.

He went rogue after the news, drinking alcohol and having a good time with women, and it was at that moment, when he was putting his toy to play, he got a surprise.

[All-in-One System Unlocked]

Damian's unique ability was a system with multiple functionalities, but after he studied it, it seemed this system worked with a different type of coin called Erotic Coins!

Improve his body? Buy any item or unique ability from his system's store? All Damian needed was Erotic Coins, and he knew how to earn them!

“Your servant is Majestic Star ‘Panther Head’ Lin Chong, from this day forward I am your woman!”

When the beautiful and heroic young girl in front of him shouted those heaven shattering words, Su Xing was overwhelmed with shock.

And so the tale of the 108 maidens of destiny from legends begins.

In Liangshan Continent, a genius is defined as a Star Master who is capable of signing the Star Duel Covenant contract with two Star Maidens. This was truly the limit.

But right now Su Xing’s dilemma is how to convince the “Strength Star” Lu Junyi to become his eighth Star Knight. And this is just the beginning…

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This novel is based on the ancient Chinese classic Water Margin or Outlaws of the Marsh. 108 beautiful maidens with earth shattering power is unleashed into the Liangshan Continent every 108 years. Our hero, a military pilot, ripped through space and time while test flying a new fighter jet and ended up in this world.

- Description from Novelupdates