Surviving as an SSS-Class Alternate Character

It is the year 203X, and Junwoo is a seasoned expert at Over the Fantasy, an immersive virtual reality game. One of his hidden strategies involves maintaining an alternate character to use as extra inventory space for storing his main character's prized items. However, on one particularly unfortunate day, a server error leaves him trapped inside the game—stuck as Dio, his alternate character who lacks any class. The situation appears grim, but he has an inventory full of SSS-class items that could aid his survival in this fantasy world. These items should be sufficient to help him endure... Right? Original Webtoon: KakaoPage, Daum Official Translations: English, Japanese, South Chinese