S1, E1: Kouhei Tsukuda is a former researcher for the Japan Aerospace Exploration Agency and now owns Tsukuda Factory, a factory left behind by his father in a downtown neighborhood. The Tsukuda Factory continues to fare well, providing valve systems developed in-house to Teikoku Heavy Industries and their strictly domestic Stardust Project rocket development plan. Tsukuda is shocked after Teikoku Heavy Industries changes presidents, and Michio Zaizen tells him the Stardust Project will likely be canceled. To make matters worse, an agricultural tools producer and major client reduce their order for small engines. The future of Tsukuda Factory is thrown into question, and a crisis takes hold as cost concerns begin to overwhelm their ability to produce capable technology.