The task of safeguarding the planet from the enigmatic Yamada Meteor has fallen on the shoulders of none other than Hero Hiro Kobayashi, signaling the onset of an action-packed day. However, the prospect of assuming the role of Earth's protector is a daunting one for Hiro, who has hitherto been a nondescript individual. Plagued by an onslaught of extraterrestrial beings and the perilous future of mankind, he is directionless. His failure to redress the situation could mean the downfall of humanity and the earth's subjugation to the "meteor monster." Evidently, the key to their salvation lies in the power of "love," presenting yet another conundrum for Hiro to unravel.