Waga Hero no Tame no Alchemuls

A city in a region of Japan, Tsukimori, is distinguished by being protected by a single hero, a high school student named Mia. When creatures from the evil organization Calamity Co. Leviathan attack, she fights to defend the city. Takeru, Mia's childhood friend and a fellow student, secretly leads the organization as Lord Helvenom. His goal is to ensure Mia, destined to be the hero Gaimoon, continues to fight evil. The conflict between Takeru and Mia, both caring for each other, escalates as they battle for their loved ones. The story explores their relationship and the struggle between good and evil.