Season 1 of Numbers premiered on June 23, 2023.

An intelligent young man, Jang Ho-woo is employed by the Taeil Accounting Firm. His excellent memory, sharp observational skills, and his innate sense for numbers lead him to be the firm's first high school graduate hire. Ho-woo soon uncovers a web of systemic corruption and injustice that can only be stopped by dismantling one of Korea's most prestigious accounting firms.