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 complete 16-episode series is available for streaming. Seutateueob
: 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 they face cutthroat competition