Hiroya Matsumoto, striving to follow in his late father's footsteps, lands a job at Raito (Right) Trading Company. Unbeknownst to him, he joins a covert sector within the company - the enigmatic Special Duty Combat Unit called SHINESMAN. Tasked with battling comical alien threats to Earth, Matsumoto juggles mundane office duties with extraordinary missions. As the team clashes with Prince Sasaki's alien forces from Planet Voice, they transform into the color-coded warriors: Shinesman Red, Sepia, Salmon Pink, Grey, and Moss Green. Prepare for a blend of office life chaos and interstellar showdowns in the offbeat yet thrilling world of SHINESMAN!