Kousoku Sentai Turboranger (1989)

Twenty thousand years ago, the Fairy race assisted humans in a battle against the Bōma Tribes and sealed them away. Due to modern day pollution and man's destruction of nature, the power of Fairy magic has weakened, allowing the seal to be broken and the Tribes escape. With the help of Doctor Dazai, Seelon, the last of the fairies, summoned five high school seniors. As children, they were showered with the "flames of spirit" of the fallen fairies in a forest, and can now hear Seelon's voice. Donning powered suits, the product of a collaboration between Seelon's magic and Doctor Dazai's science, the five become the Turborangers, juggling days of fighting with their regular school lives, in order to defeat the Bōma Tribes.