Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 16 - 16-14. End of the Assailants (2)

After an unexpected death, a soul finds itself reincarnated into the body of Itsuka Shido, an ordinary teenager in a world filled with powerful spirits, magic, and dangers from other dimensions. With the help of a mysterious system integrated into his body, Shido gains the ability to travel across worlds, summon legendary anime characters, and unlock a wide array of random skills and abilities.Disclaimer: The cover isn't mine, credits to the original artist.

You thought being reincarnated as an extra-side character was bad? Imagine being thrown into the body of a villain who is disowned by his own family and discarded by the author.

Xiao Feng, the protagonist of the story was an ace at online games. By accident, he knew a game called Mystery which can reduce human’s energy consumption and improve the space-allocation on the earth. In this game, he hit monsters, increased his levels and met a lot of friends. However, at the same time, he was inevitably drawn into the struggle within and outside the labor union. What should he do? And what difficulties would he face? The following are his inner monologues.

I was killed in the game and asked him/her to fight offline only to find that she was a girl. What should I do?

I wanted to be a support and carry my team-mates only to find that all of them were newbies, what should I do?

Please don’t court death and let me kill the boss with the hammer!

To conclude, this story is about a support who would have liked to carry all his team-mates. However, after realizing that support could not save the world, he resolutely picked up the hammer and killed the boss in the game.

- Description from Novelupdates

This is a story about a young man who sought to fight against his destiny. With the help from billions of Dragon Energies trapped on the Rising Dragon Pillar in his body, he emerged from the dark and quenched himself with the blood of ancient dragons. He fought the heaven with the Buddhist Art for the people he loved and built the Eternity Kingdom with his own hands. This is a story about the rise of the Martial Emperor who will rule both earth and heaven.