Shinkalion: Change the World

A mysterious enemy known as the "Unknown" emerged long ago, prompting the creation of the "Shinkalion," a robot capable of transforming into bullet trains by the "Evolutionary Railway Development Agency." Taisei Oonari, a junior high student, transfers to Shinkai Gakuen Middle School seeking information about his missing older sister. After a decade of silence, the Unknown reappears, and Taisei is identified as a potential Shinkalion pilot due to his high aptitude. He must decide whether to engage in the battle. The series explores the nature of the Unknown and its objectives, as well as the revelations that arise from the conflict. It follows Taisei's journey as he confronts these challenges and undergoes personal development.