On the day of her forced marriage, Mira Shifuto finds herself instead being abducted at the altar by a handsome man in red with a cool high-tech convertible. He explains that he is Taiya Hando, a high-stakes delivery driver, and Mira’s boyfriend has hired him to rescue her. Mira's erstwhile groom and his associates are destroyed while chasing them when the Great Space Invasion Running Team Hashiriyan, an interplanetary mafia, arrives to conquer Earth. Inspired by Taiya’s defense of her as Bun Red, Mira asks to join him as part of his team of delivery specialists, Bakuage Sentai Boonboomger.
