Mana Yoshimuta

Kyôko, a traumatized young Japanese girl, finds herself struggling with her self-confidence in her adult life. Growing up in a family without her mother and her sister, she constantly questions the rationale of sex and the notion of liberty in modern Japanese society.

An old couple, their only son, the son's wife, a young man and his lover live peacefully in a village. Then, a terrifying earthquake strikes that causes a nearby nuclear station to explode. The residents must evacuate, but the family lives on a farm, with only half of the area designated as an evacuation area.

When the Cosmic Invading Grand Racing Crew, Hashiriyan intends to expand their territory with Earth being their next target to take over, five genius mechanics join forces with an alien machine named Bundorio Bunderas to create their own supercars and special equipment to defend the planet as the Bakuage Sentai Boonboomger!