(Kang Han-na): Dal-mi's estranged older sister, a wealthy CEO who tries to succeed on her own terms. Plot Summary

(Kim Seon-ho): A sharp-tongued investor at SH Venture Capital with a secret past connection to Dal-mi.

(the Korean title for Start-Up ) is a 2020 South Korean television series that follows young entrepreneurs competing for success in South Korea's high-tech industry. Series Overview

: You can view trailers and episode details on their official page. Quick Facts Episodes Original Network Director Oh Choong-hwan Writer Park Hye-ryun Start-Up (TV Series 2020) - Videos - IMDb

: The complete 16-episode series is available for streaming.

The story centers on a "misunderstanding-to-reality" arc where Dal-mi believes Do-san is her childhood pen pal (who was actually Ji-pyeong writing under Do-san's name). As they enter Sandbox to launch their startup, they face cutthroat competition, technical hurdles, and a complex love triangle. Where to Watch

The drama is set in , a fictionalized version of Silicon Valley located on Nodeul Island in Seoul. It focuses on the personal and professional growth of several key characters: