Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Chapter 529 - 17-41. Netherworld Invasion

Transmigrated into the body of a cannon fodder villain, Chu Yu has three major worries:

1. How can he help the protagonist turn into a real harem master?

2. How can he develop a good relationship with the protagonist?

3. How can he live properly without holding on to the protagonist’s thigh?

The protagonist has three major worries:

1. Eldest disciple brother has changed

2. Eldest disciple brother has really changed

3. How can he marry eldest disciple brother?

System: Congratulations! ~ Sprinkle Flowers ~ Grow Old Together Happily!

Chu Yu: … Wait, what about the harem novel?

Author’s Note – This 1vs1 (no harem) And HE (Happy Ending)

- Description from Novelupdates

When 18-year-old Chu Miao dies in a tragic car accident, her soul vanishes; but her body does not remain empty for long. A formidable warrior from an ancient era, the daughter of a renowned general, awakens in her place. Sent into the future by a prophecy, she finds herself in a world on the brink of destruction.With only a month before typhoons ravage the land, extreme weather shifts without warning, and terrifying mutations transform animals and plants into deadly threats. Worst of all, a horrifying virus spreads like wildfire, turning humans into flesh-eating zombies. Civilization crumbles and only the strongest survive.Though her new body lacks the powerful cultivation she once had, she still possesses an invaluable advantage; her ancient spatial ring. Filled with elixirs, weapons, demonic beast cores, and rare cultivation resources, it becomes her greatest tool for survival. But modern supplies are also essential, and she must act fast to stockpile resources before the apocalypse fully takes hold.As chaos reigns, she fights to protect her family and secure a foothold in this brutal new world. Along the way, she crosses paths with a mysterious and powerful man, one of the rare few who awaken supernatural abilities and is just as determined to survive. Together, they forge an unbreakable bond, battling both the relentless undead and the desperate survivors willing to kill for a chance to live.Armed with ancient wisdom and modern strategy, she refuses to bow to fate.In this new life, she will rise again—not as a lost soul from the past, but as a warrior destined to rule the apocalypse.

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Illustration for the characters and location are in my Patreon.=================Dying from a heart attack when playing Minecraft was definitely not the way I thought I would die.Being reincarnated afterward was also not what I thought would happen.But I guess having another chance at life is a great thing!Now, how am I going to live in this world of Swords and Spells?