MTL - Crossing the Happy Daughter - Chapter 1591 means

In a future timeline, the earth was visited by a species known as the Slarkovs.
Having lost their home planet and in search of a new one, earth was the next habitable planet for them.

Humans and Slarkovs made a deal with each other in return for the Slarkovs living on earth.
The Slarkovs traded their technology and knowledge for a new home.
They were similar to humans except for some of them who had slight differences so fitting into the society wasn't a problem.
Over the years Slarkovs and humans began to mate with one another and reproduce offsprings.
This in turn created a new species known as the mixed-blood.
Centuries later mixedbloods could tap into their bloodline and perform unimaginable feats.

Gustav born into an age where bloodline determines everything, struggles to fit with a useless bloodline.
His bloodline only grants him the ability to change his hair color, destroying his hopes and dreams for a great future.
His fate is turned around when an unexpected situation leads to him finding a system that grants him the power to unlock and upgrade bloodlines by completing quests but he's baffled by two quests with a five-year deadline. Success will grant him unimaginable rewards...
But only one thing awaits him if he fails... Death!

Follow Gustav on his interesting journey filled with unprecedented adventures, danger and death, maybe?

Silvermist Evermore never belonged. Born to unloving parents and cast aside, she had long accepted that life would never offer her warmth—until she was chosen as an apprentice at Moonstone Academy, a place where magic breathes and fate is written in the stars.But her arrival comes with a price. In an act of betrayal and manipulation, Silvermist shatters Frost's staff, the formidable Winter Guardian, unraveling a secret that should have remained buried.Now, bound by an ancient rule, she must take its place—not as a mere apprentice, but as something far more dangerous: Frost’s human staff, the living embodiment of his power.As Silvermist struggles to navigate the treacherous halls of Moonstone, she discovers that Guardians without apprentices are doomed to vanish, and the balance of the four seasons—Spring, Summer, Autumn, and Winter—hangs by a thread. But the shadows whisper a greater truth: a war looms on the horizon, fueled by the Sandman’s wrath and a hidden enemy who has been pulling the strings all along.Haunted by cryptic dreams, hunted by those who seek to use her, and betrayed by those she once trusted, Silvermist must uncover the truth behind her own existence before she loses herself to the very storm she was forced to wield.Can she survive the weight of Winter, or will she be the final snowfall that buries them all?

Lucien, a guy who has nothing but the desire to save his mother. To get strong enough, he makes a contract with the demon of L.u.s.t. And now, only by making a great harem, will he gain the power to protect those dear to him.

This is the story of a man who grew up with everything—money, love, family, status—but in isolation for being unique, abnormal... an anomaly.He finally gets a chance to show his skills, his talents, his potential to the world.On that fateful day, during his Awakening ceremony, not only did he awaken his abnormally strong innate ability, but he also found out he was being rewarded, loved, favored by the system.This is the story of a man who is undefeated by anyone and anything, a man who grew powerful beyond imagination, a man who rose to power on his own.This is the story of a man who turned many worlds upside down, stopped many wars, won many battles, dethroned kings, and became kings of many.This is the story of a man who represents both balance and imbalance, holy and unholy, good and bad, light and dark, pure and impure, positive and negative, order and chaos.It all started when the system started favoring him.Watch Sam grow from an ordinary noble to the most powerful entity in the entire universe while he finds many buried secrets about his origins, about the system that governs every being in the universe, and why he is being favored by the very system.There was none like him, and there never will be.