The Gloomy Demon King Is Reborn and Chooses to Do Nothing

When disaster strikes and the planet mutates, Xing, born to an ordinary family, fights his way into the number one hero university. He is the top student in his year, with a bright future within reach.

Countless people gossip about the poor kid making it big. All he wants is to earn enough to raise his younger siblings.

But:

Ordinary heroes face discrimination. Out of a million in earnings, they get only three thousand.

Noble heroes live it up in the CBD, earning 2.08 million a day for staged rescue performances.

The powerful offer his younger siblings as human sacrifices, while an eighty-year-old man gains three extra days of life.

Xing swears to kill every scumbag rotting the world.

Xing thrives in the darkness.

He creates siblings who can live forever and never die, establishes a secret society that strikes fear into the hearts of heroes, and kills countless scumbags, becoming the uncrowned king who rules over the antiheroes.

Only when Si Lan cuts open his chest does he realize that the number one hero, born into nobility and standing before him, is the protagonist of the world.

All his efforts have led him to become the Demon King destined to die at Si Lan's hands.

Reborn at eighteen, Xing sees Si Lan coming toward him with a bright smile. At last, he breaks. Faced with a world that's rotten to the core, he decides that if he's going to be knocked down, he might as well stay down.

The once-vibrant, relentlessly ambitious top student grows more and more dejected. The classmates he's helped line up to check on his mental health, and the teachers who keep an eye on him hire the best doctors for him.

Even the protagonist, who used to stand high above everyone else, now wants to stay by his side twenty-four hours a day.

After being chased and cornered all the way, Xing finally loses his temper. "Get lost! Don't make me hit you."

Si Lan, newly determined to win him back: "Xing, you're not going to abandon your little shadow, the most invincible person under heaven, are you?"

Xing: "...Are you crazy? You're breaking character, protagonist!"

Si Lan has a secret.

He has a diary from the future, filled with his own unrequited, tragic love:

[Only when he died did I realize I loved him]

Si Lan: How could someone as cold and ruthless as me ever fall for anyone?

[A chibi drawing of the one I love x999]

Si Lan: My darling, whom I've never met, is adorable from every angle!

[I cut open his chest and held his corpse. I've lost him forever]

Si Lan: ...What kind of trash will my future self turn into?

To hell with the future! Get back, get back!

Xing and I are definitely going to live happily ever after, holding hands until we're ninety-nine!

Extra scene:

Xing gives Si Lan the middle finger.

Si Lan puts a 50-carat ring on Xing's finger!

Xing slaps Si Lan hard across the face.

Si Lan catches Xing's hand and kisses his palm tenderly.

Xing: "...There is definitely something wrong with him!"

Theme: Offer the world your love.