Douluo Dalu 2: The True God King - Chapter 243: [DD2]:

At 79, Adom is an old mage who has known nothing but illness and regret. When the world finally burns and all hope turns to ash, at the last beat of his fading heart, a mysterious being appears in the dimming light with a simple question:“If you could try again, would you?”What's left to lose when you've already lost everything?A handshake seals the deal, and Adom wakes up on his old school grounds, sixty-seven years in the past. When everything is still possible. A second chance with all his knowledge intact, his memories preserved, and his youth restored.This time, Adom wants it all: to feast on food he's never had, to travel a world still full of wonder, to finally live the life he dreamed of. There's just, as always, one small catch—he needs to prevent the end of the world first.But as Adom will soon discover, changing history might demand sacrifices even greater than watching it burn...

Nagi Travers, a 20-year-old shut-in and former gaming champion, lives a miserable and isolated existence after being tormented by bullies throughout his life. Fired from his last job and grieving the loss of his parents, Nagi now survives by playing video games and barely ventures outside. His world spirals further into despair when he encounters Jake and Mary, his former high school bullies, who humiliate him and steal his money.Broken by the return of his tormentors and the weight of his past, Nagi contemplates suicide as his only escape. Just as he’s about to take his life, a small girl’s ball rolls into the street, with a speeding truck barreling towards her. In a moment of selflessness, Nagi rushes out and saves the girl, sacrificing himself in the process. Fatally injured, he reflects on the idea that it's better to die doing good than bad.Nagi awakens in a surreal, white world, where he is greeted by an angelic figure who offers him two choices: remain in eternal peace, free from suffering, or be reborn in a different world where he could seek redemption and a second chance at life. Nagi faces a life-altering decision—rest forever or attempt to find meaning and fulfillment in another world.

Qu Mao, who hadn’t had time to cut his sister out of class and experience the degenerate university life, woke up and found that he had come to a strange and cruel new world, and it seemed that young people from all over the world came to this world together…

The world channel was full of shouts and curses. Except for a tattered lord’s order, everyone didn’t even have a whiteboard novice weapon at the beginning…

But Qu Mao is not worried or in a hurry, because he has a cheating system with him, and he just wants to save some cheating points. With cheating points, he has everything.

Who would want to cheat if they could win by cheating?

- Description from novelbuddy

The Main Character, Watari Karito, is a veteran player of a Military Shooting VRMMORPG.