When Daichi Manatsu witnesses a mysterious rainbow near the Tanegashima Space Center resembling one from his father's tragic past, he embarks on a journey to this location. Here, he becomes entangled in Globe, a covert organization safeguarding Earth from alien threats. Despite his youth, Daichi's gaming prowess and the Livlaster weapon equip him to pilot the Earth Engine Impacter, Earth's last line of defense against energy-draining extraterrestrials. Alongside a team of talented peers, Daichi faces the daunting task of protecting humanity's future.