MTL - Immortal Becomes a Stay-at-home Dad After Return - ~ 533 Swimming Fitness Learn?

After 140 years that gates and dungeons appeared on Earth and a system allowed humans to use special abilities, Matthew an 18 years old who just got out of high school will seek adventure inside those perilous places. However, instead of being able to select his own class as he progress the levels, destiny has another plan for him.

Born into a wealthy family, Gu Shenwei was spoiled and carefree. However, at the age of 14, his entire family were brutally murdered, and he was caught by some bandits who sold him into slavery. As a slave boy, he entered Golden Roc Fort by chance and found the man who had slaughtered his family. He endured insults and worked hard to improve his kung fu while working as a slave boy. He learned from and plotted against his enemy under the enemy’s nose. He became increasingly ambitious as he became more and more powerful. He would only be satisfied if he completely destroyed his enemy—by fair means or foul. Gradually his bitter experience turned him into a totally different person.

In the wake of the first wave of shadow creatures, the world was plunged into ruin, a desolate yet enchanted wasteland. Humanity, driven underground, clung to survival while desperately plotting to reclaim their shattered world.But from the abyss of darkness, something miraculous stirred—a mysterious tree, shimmering with ancient power, appeared overnight. It chose only the strongest of heart, those with unbreakable will, gifting them extraordinary abilities. With these powers, humanity rose from the depths, waging war against the shadows.Yet beneath the surface of their heroic deeds lay a hidden rot. Corruption seeped into their ranks, and arrogance clouded their judgment. As their powers grew, so did the whispers of betrayal. The true battle may not be against the creatures lurking in the shadows—but against the darkness festering within their own hearts.A question lingers: When heroes fall, who will rise to take their place?

It’s been 11 years since I’ve lived for others and not for me.

The moment I cried out wanting to get away from my exhausting life, I opened my eyes in the body of some Count’s 20-year-old daughter.

Since this happened, I decided to live my life freely as a single woman.

But…

“I need a lady to act as my fake wife for a certain period of time.”

“A contract marriage?”

“The term is one year. When the time is up, I’ll give you divorce with no strings attached.”

The Duke of the Empire whom I had happened to meet at a ball was hitting on me.

Turns out he’s no other than the Emperor’s beloved brother, Duke Scade!

Hold on, it’s just going to end in a clean divorce with no strings attached?

“You should also give me alimony. Give me one of the best lands of the Ducal household with 10 years’ worth of profit.”

“…..What?”

“If you don’t want to do that, then we cannot get married.”

This time I’m going to live a life taking care of the things I need first!

***

“I’ll escort you since it’s late.”

Where to? My bedroom is just around the corner.

“Tonight, I’ll do my best.”

No, I don’t need you to do that.

“Did you just look at that man?”

Excuse me, Duke, you said it’s for a limited time only, so why do you keep obsessing over me?