My Wife is an Aloof Beauty - Chapter 1791 The Big Party (Part One)

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

Working as a henchman for his childhood crush hasn't been great.

But Sam is a hopeless romantic. Even though she's a failed supervillain, he decided to work with her so that he can at least stay by her side.

Although things began to change when Kiara, his childhood crush, started developing feelings for a particular young man.

Now if it was just any other guy, he would've met with some unfortunate 'accident' already but the guy in question was none other than the son of the strongest superhero himself.

Starboy aka Anthony Willburn, the reason for all their failures up until now; and she decided to fall for THAT guy!?

Sam couldn't accept this absurdity and decided to ruin his love rival's life by embracing his destiny and rising as a supervillain himself.

Set in a distant future where only the chosen few are graced with superpowers, the story will mainly focus on the perspective of our protagonist as he will enroll in an academy of superheroes to get close to his love rival and find his weakness all the while maintaining his life as a supervillain.

This novel is also known as From The Start, I Traded A Galactic Warship

After getting a trading platform three thousand years later, everything in the world has become an antique, worth a thousand gold.

But it was also learned that three years later, aliens invaded, human beings fell, and the dark starry era began.

In this era of unprecedented change in tens of thousands of years.

Shen Shi decided.

First trade a space battleship, and then talk about it.

then–

Battleships come to the world from outer space! Global shock! Starry Sky Era, open in advance!

- Description from novelbuddy

Kuramoto Daisuke, a freshman in High School was suddenly exposed to someone vanishing in front of him. Turns out he was admitted to a Special Class full of Isekai Heroes that were regularly summoned to Otherworlds since the start of their Middle School. He was told that he was to become their Support to prevent each of the Heroes' fate of dying in the world they were summoned into. Though mediocre, he realized that his ability has a great potential but it needs a lot of hard work on his part.

Unconvinced of being just the Support Character, he vowed to excavate his mediocre ability, all the while supporting the Heroes using it.

And maybe more.