Ep. 1: Takuto Kaneshiro studies for military flight status while Maki asks for research help amid giant invader attacks.

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Earth faces severe casualties from unexpected assaults by unknown invaders standing four stories tall. The world struggles to cope with the constant threat and mounting losses. Takuto Kaneshiro, a talented metallurgist, is currently studying to achieve military flight status. His girlfriend, Maki, enlists his assistance to support her ongoing research efforts. Amidst the chaos and danger posed by the towering attackers, Takuto balances his academic pursuits with personal obligations. The narrative highlights the strain on humanity as it deals with these mysterious and formidable foes. Takuto's dual focus on his career goals and helping Maki underscores the personal stakes involved in the broader conflict.