Both Start-Up and Trillion Game are dramas that revolve around the world of start-up companies and the challenges and opportunities they face. The main characters in both dramas have different personalities and backgrounds, but share a common goal of achieving success and innovation in the IT industry. They both explore the themes of friendship, rivalry, betrayal, and growth among the start-up founders and their employees: In Start-Up, Samsan Tech faces various obstacles and competitors as they try to enter Sandbox, a fictional Silicon Valley in South Korea. In Trillion Game, Haru Tennoji and Manabu Taira use their skills and bluffing to create various IT products and services, while clashing with Dragon Bank and other rivals.