The Main Characters That Only I Know - Chapter 12:

Meet Sora and Shiro, a brother and sister who are loser shut-ins by normal standards. But these siblings don’t play by the rules of the “crappy game” that is average society. In the world of gaming, this genius pair reigns supreme, their invincible avatar so famous that it’s the stuff of urban legend. So when a young boy calling himself God summons the siblings to a fantastic alternate world where war is forbidden and all conflicts–even those involving national borders–are decided by the outcome of games, Sora and Shiro have pretty much hit the jackpot. But they soon learn that in this world, humanity, cornered and outnumbered by other species, survives within the confines of one city. Will Sora and Shiro, two failures at life, turn out to be the saviors of mankind? Let the games begin…

“You nearly killed me in the past timeline and destroyed my life. Now that I have been given the chance to return to the past timeline, I will be changing everything and fight the future that was meant to be a dead end. Once we meet again, it will never be the same!”

When the only Virtual Reality game called Alternate World made the players gain abilities, the world changed drastically. The whole world undergoes a change of lifestyle, people started to manifest abilities, and playing the game became a job.

Manato Tsukasa, a player who is also one of the players of Alternate World was targeted by his enemies during the evening before his wedding and was almost killed in the process. Due to a certain encounter, he was allowed to gain a second chance to go back to the past and change everything.

With the chance to change everything and start from scratch, he decided to take advantage of all his knowledge and so that he can prepare to kill the person who ruined his life. And to start his vengeance against his enemy, he played the game again that didn't only change the gaming industry but also the whole world.

When he woke up, Lin You found that the world had changed drastically.

Monsters of all races roar and bombard wildly, field magic cards form a deep sea out of thin air, royal tombs, skyscrapers, and trap cards are infinitely possible.

Duellist colleges and universities all over the country are rising, and the miracle secret realm is full of dangers.

This is a world where all people chase cards, and the era of card duelists shines.

- Description from novelbuddy

A man betrayed by a comrade dies a wretched death as a third rate swordsman. His existence, his life, his emotions are all a nuisance in the eyes of society. But wait… What’s this green skin? Reincarnated as a goblin? Wait, I went back in time as well?