A group of young pirates from space come to Earth to obtain the "Greatest Treasure in the Universe", which can only be acquired after obtaining the Ultimate Powers of the 34 Super Sentai. However, they end up running afoul of the Space Empire Zangyack, whose earlier invasion forces were wiped out by the 34 Super Sentai long ago. As a result, the space pirates use "pirate copies" of the powers of the older teams and fight the Zangyack forces as the Gokaigers.

Haruna Tsubame, an inconspicuous high school girl, is always sensitive to people’s moods and keeps the peace in school. One day, she gets pushed to become the president of the student council by the people around her. Tsubame's encounter with a man who is a genius speechwriter, leads to a revolution in school. She struggles to change a school full of irrationality and dissatisfaction with the power of words.

Hikuma Koichi was a saxophone player, but he suffers from the after-effects of an accident. Due to that, he turned his back on music. Hikuma Koichi finds hope in the high school brass band. The band consists of problem students. Koichi struggles to instruct the brass band and to give them hope.

Junior high school teacher Koyama Akira has the ability to sense ghosts, and his new school has a ghost named Akane who used to be a teacher.