After years of managing his germanium business post-controversy, Hyeong-gu finds unexpected success when the FDA approves germanium accessories as medical devices, leading him to reconcile with former critic, Professor Park. However, Park’s public rejection of Hyeong-gu’s gift sparks outrage, risking his career. Driven to discredit germanium, Park’s team eventually deserts him, while Hyeong-gu remains resilient alongside his daughter. With an FDA re-evaluation on the horizon, Hyeong-gu’s business faces a new turning point.