Infini-T Force

Seventeen-year-old Emi Kaido lives alone in Shibuya, wealthy but emotionally detached from the world around her. A mysterious light leaves a giant pencil-like object called the Case in her hands, just as robots from another reality attack the city. She is saved by legendary heroes Gatchaman, Tekkaman, Hurricane Polimar, and later Casshan.

The four warriors have been pulled from worlds threatened or destroyed by a being called Z. As Emi learns that the Case can reshape reality through wishes, the heroes must protect her and discover why Z is so determined to reclaim it. Their battle becomes inseparable from Emi's own family and the choice of what kind of world she truly wants.