Gogyoyagu Tycoon

Seo Do-Young, a former scout for the professional baseball team the Unicorns, finds herself unemployed after the team disbands due to poor performance. When a mysterious app called \[High School Baseball Tycoon\] appears before her, she decides to use it to transform Cheongil High School, which was at the bottom of the rankings, into the nation’s strongest team.

(Source: Naver, translated)