Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 1 - 1-6. The Marketplace, the Princess and the Slave Trade

“Obtaining the topmost degree of talent in sword arts in the world requires giving up 72 years of lifespan, which leaves you with only five more years of your life. At the same time, you will never be able to feel love, kinship, and friendship, and you’ll end up leading a lonely life until your death, unable to procreate, or to have any descendants.“From now onwards, everything related to happiness in the human world shall no longer be of your concern. Are you willing to accept this?”“Hahahaha, I’m already alone bereft of all support, my hopes dashed to pieces, shouldering only absolutely irreconcilable grudge and hatred, why would I disagree? Why would I not want it? I couldn’t ask for anything better!!”His sword sweeps across the Divine Continent for seven days and nights, moving 90,000 miles through the starry skies, unhindered.He slays saints and buddhas in Heaven, slaughters demons and devils in Hell, sweeping away all the grievances in his heart.

He was persuaded into playing the VRMMO 「Trailblazer」 or TB for short by his cheerful childhood friend Miyu.

But Wataru faced Miyu, who was full of motivation and said this.

「Then, I’ll be the rearguard. Shinto priest? I’ll take this one」

「What!? You are not going to fight next to me!? And you call yourself a man!?」

For some time she would become one of the top players and start getting called Hero.

So Wataru had to deal with being an extra.

But, during a certain PvP event, a strange nickname was attached to Wataru.

That, he was actually the 「Hero’s true self」.

This novel is also known as Master Fu's Mysterious Darling Wife

She is the The Young Miss of Military family Shen, her face is peerless, her temperament is cold, and she is her family’s treasure, but isn’t accepted as one’s child by her mother;

He is The Sole Heir to the top giant Fu Family, his power is unparalleled, indifferent high-born, the captain of the mysterious military force, and the youngest commander-in-chief.

Because of her grandmother’s wishes, she married him at lightning speed. She thought that it was a marriage that she needed, but she didn’t expect to be greeted with his extreme pampering.

- Description from Novelupdates

“Ryan was transported to a world of swords and magic, and he discovered that he was contracted with a system that made him stronger as long as he continued to practice basic magic!

When everyone else was learning all sorts of fancy magic, Ryan was keeping a low profile practicing foundational magic!

“Ding! Congratulations to master for completing foundational magic training 10 000 times. You obtained [Spell Casting Speed X10]!”

“Ding! Congratulations to master for completing foundational magic training 100 000 times. You obtained [Complete Fire Elemental Magic]!”

“Ding! Congratulations to master for completing one million times of blade-drawing. You obtained [Domain of the Laws of Magic, Saint Mage Rank]!”

Thus, after practicing foundational magic for billions of times, when Ryan unleashed his foundational magic, he realized that no one could rival him!”