An anime about Operation Castle and the demise of the crew on the Daigo Fukuryuu Maru (S.S. Lucky Dragon 5). On March 1st 1954, a hydrogen bomb went off (that ended up being similar sized to the atomic bomb dropped on Hiroshima). The radioactive ash fell on the crew, poisoning them. The anime deviates into fantasy as the ash also affected the marine life--that talk and wear human clothing and is the main focus of the movie; how the radioactive ash affected the talking fish.

In Kyoto, apprentices known as maiko are skilled performers of traditional dance and song. It is said their elegance and grace leaves any audience entranced. Mai Ichinose, Riko Kikuzuki, and Midori Aikawa are young girls who aspire to become maiko. They reside together in a geisha house to polish and perfect their skills, developing bonds of trust and supporting each other. However, their shared dream may prove disastrous for their friendship... When they learn about an upcoming festival, they cannot help but get excited. But soon they realize only two maiko can represent each house. It is then that the three close friends become distant, seeking to prove who is most deserving of the role. Ultimately, they must choose between fulfilling their own dream—finally within reach—or keeping their treasured friendship alive.

Yoroi Takeshi is a carefree and somewhat naïve youth, who works as an assistant to the bumbling detective wannabe Kuruma Jo (who frequently proclaims himself the heir apparent to the title of Greatest Detective “Sherlock Holmes”). From their rundown and shabby office, they run a humble if not failing private investigation service. The spunky and cute Nanba Teru (who’s father owns the building when Jo and Takeshi reside in) frequently interferes in their affairs by threatening eviction (Jo is continually months behind in back rent). Since they rarely get any clients, they must resort to eavesdropping and spying on the Secret International Police Department headquarters, located in the building across from theirs in order to get their assignments. Unbeknownst to Jo and Teru, Takeshi has a deep secret. Not only is Takeshi the son of the International Police Department Chief but in times of peril and danger, mild-mannered Takeshi uses his trusty Poly-Met (Polymer Helmet) to transform into the Superhero “Hurricane” Polymer, a red suited masked man with incredible fighting abilities and superhuman strength. The only one who knows Takeshi’s secret is his lazy Saint Bernard, Daisaku, who always likes to provide cutting commentary to the audience (using his inner voice). Together Jo and Takeshi (as Polymer) confront and battle a myriad of evil organizations, criminal gangs, mutants and monsters as they fight crime in the future city of Washinkyo (Washington/Tokyo).

Star Driver takes place on the fictional Southern Cross Isle. One night, a boy named Takuto washes up on shore swimming from the mainland. He later enrolls in Southern Cross High School as a freshman and makes new friends.