Summary
Overpowered Through Job Changes: I Changed Classes So Many Times That S-Rank Guilds Rejected Me at the Application Screening Stage, So I'll Rise to the Top in a Dark Guild!
After changing jobs twelve times, the protagonist, Walt, is rejected by every guild, including S-Rank guilds, due to his excessively long employment history, eventually being driven into the slums. However, Walt has a secret! Unlike everyone else, who loses all the skills from their previous jobs upon changing classes, Walt has retained every single one of them, including skills from his former jobs as a [Farmer], [Merchant], [Hunter], and many others. Despite being regarded by society as a low-ranking nobody, this overwhelmingly versatile powerhouse conceals his true abilities as he rises to the top of the underworld.