Saiaku no Avalon  

Finding Avalon: The Quest of a Chaosbringer, Evil Avalon, 災悪のアヴァロン

The main character in this story is a man who earns a reward for completing a beta test event. He then gets transported to the virtual reality massively multiplayer online role-playing game Dungeon Explorer Chronicle, where he transforms into an overweight and disliked side character named Souta Narumi.

Saiaku no Avalon began as a web novel on Shousetsuka ni Narou on May 30, 2021, and in published in print by Hobby Japan since September 20, 2022.The series has been published digitally in English as Finding Avalon: The Quest of a Chaosbringer by J-Novel Club since December 22, 2023.