A giant monster suddenly appears on Earth, but along with it comes a giant humanoid that people come to refer as Summer Hero. Summer Hero defeats the creature, but its decaying corpse infects thousands of people, dooming them to a zombie-like death. Taigi Makoto is a young boy devoted to making Summer Hero pay for the damage she has caused, but he doesn't know Summer Hero's secret, and if he leans it, everything will change. It's tokusatsu with a twist for fans of Ultraman and big kaiju battles! (Source: Mangamo)