Mitou Shoukan://Blood-Sign - Volume 2, Prologue

Though he received the skills necessary to teleport across worlds, the king who performed the summoning ritual attempted to trick him into wearing a slavery collar, this annoyed him so he kidnapped the princess and returned to Earth.

I wanted to rely on hard work and hard work to become stronger, but I found that lying down is more comfortable.

The point is, you can upgrade while lying down!

Why should I stand when I can lie down?

- Description from novelbuddy

What would you do if your planet ceased to exist after a nap?

Once upon a time, there was a princess…

Scrap that.

Once upon a time, there was a hermit called Yao Si.

She was an orphaned hikikomori who lived a peaceful and mundane life in her cosy little apartment.

Just when she thought she’d live out the rest of her mundane days… she died.

By a strange twist of fate, she was somehow turned into a vampire, even worse, a fifth-generation weakling with no combat ability at all.

Vampires had their own little secret society, cultural feuds, and called themselves bloodlings.

With the threats of another civil war among the bloodlings, Yao Si remained composed.

‘Even if this war of bloodlings rages on again, it will need a miracle to affect me,’ she thought.

So, a miracle occurred…

When she was woken up from a millennnia-long nap, she found that her beautiful mother planet Earth had ceased to exist.

Even the oldest bloodling in the entire universe was now one of her grand [ times infinity] child.

Everyone will have to call her “ancestor” from this moment onwards!

The peasant Yao Si had successfully revolted and taken charge, let’s see who dares to call her a weakling anymore!

“Hey! You, that guy over there!

“Yes, you.

“Come on, let’s fight, if I lose, I will call you ‘dad’!”

So… she has a new dad.

Yao Si “…”

Mu Xuan “…”

- Description from novelupdates

The apocalypse descends, zombies and monsters appear, followed by System Leveling, which grants skills to all survivors.With the collapse of law and order, some become powerful while others remain weak, and so the dark ages begin.