The “unknown” is a mysterious enemy that suddenly appeared long ago As a countermeasure, the “Evolutionary Railway Development Agency” (ERDA) developed “Shinklian” robots that turn into bullet trains, in order to prepare for danger.
“I want to be a cool person who can protect something…” Taisei Unari, a second-year high school student, transfers to Shinkai Gakuen High School in search of clues about his older sister who disappeared two years ago They become.
Just then, the unknown appears for the first time in 10 years. Taisei has a high aptitude value as a Shinkleon pilot and is forced to decide to fight him. What is the true nature of the unknown and what is its purpose? What truth comes out at the end of the fight? The boys’ story of determination and growth begins now.