Moto Sekai Ichi'i Subchara Ikusei Nikki: Hai Player, Isekai wo Kouryakuchuu!

The protagonist, who rarely showed up at school during his middle and high school years, remains unemployed as an adult. His entire life revolves around video games, where he reigns as the top-ranked player in the world. But everything shatters when his character is hacked—his data lost forever, his hard-earned rank gone without hope of recovery. Consumed by despair, he attempts to end his life. When he opens his eyes again, he finds himself not in the real world, but inside the very game he once lived for. No—this isn’t a game anymore, but a reality that mirrors it. To his shock, he has reincarnated into the body of an old sub-character he once created, purchased premium perks for, and then left to gather dust.