The Villain Who Robbed the Heroines - Chapter 1: I Became The Villain Who NTR’d The Heroine.

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?

As a successful villainous BOSS, in addition to having ideas and aspirations, one must also keep in mind three points:First, grow sneakily, don't act rashly (once a villain acts rashly, they basically won't survive past three chapters).Second, you're not a good person, so be ruthless (becoming more evil will make you three times stronger, while redemption weakens you by seven times).Third, remember the two points above. The moment you forget them, your end is probably on its way.

If there was an object that could grant any wish you wanted, what would you ask for?Most would ask for wealth and prosperity, while those who are sick would probably ask for health and safety.It sounds impossible, but what if something like that actually existed?...Kirigaya Yuuya, a corporate slave, found himself in an unimaginable situation.After doing a good deed for a beggar, he was given a magical candy that supposedly granted wishes.At first, he dismissed it as nonsense, but when he jokingly wished to be reincarnated as the pathetic character Arthur Vanitas from a fantasy novel he had read, he was stunned to find that the wish had come true!Fear and panic set in as he realized the fate of Arthur Vanitas was a miserable one—he was nothing more than a stepping stone for the protagonist.Just as despair started to overtake him, a voice suddenly echoed in his mind.[Ding! The System of a Thousand Worlds is ready to assist you!][By completing the challenges and missions in the selected book worlds, the system guarantees a change in your fate!][Mission 1: Complete the world titled “Rise of the Unwanted Queen!”][Reward: Mastery of the Five Elements Talent and other mysterious rewards.][Mission 2: Complete the world titled “The Destruction of the World by the White Mage.”][Reward: ...]And with that, Yuuya's journey to change his fate began.

Su Mo, a late bloomer, was introverted and bad at socializing with strangers.He thought his life would stay pretty ordinary, but everything changed when he started playing the popular game Star Ring. He unexpectedly rediscovered the joys of life and set off on a journey to claim the throne.