A Regressor's Tale of Cultivation

There were seven individuals who fell into a world of immortals. Each seemed to flourish in said realm with their own blessed gifts...except for Seo Eunhyun, the only one among the seven who hasn't manifested a power. In truth, he did have an ability of infinite regression—but this was no blessing. It was a curse. Thus begins the story of Seo Eunhyun and his desperate struggle in escaping his never-ending regression.

(Source: Raon E&M, translated)