Hikonin Sentai Akibaranger(非公認戦隊アキバレンジャー)

Three individuals (a Super Sentai otaku, a cosplay otaku, and a closet anime otaku) are chosen by a beautiful scientist otaku to become the "Unofficial Sentai Akibaranger" and "protect Akihabara" from powerful otaku villains that only exist in their delusions. However, the otaku fight eventually gets literally real when their "otaku enemies" begin to materialize in the real world.