In the Binfield Kingdom Chronicle, it is said that once there was a small, peaceful country called Kingdom of Winfield, whose king and royal family possessed great white wings.
Hamura Shou is a new student at Yuusei Academy. After hearing about Misonou Kai from the headmaster, Shou now believes he has to be his younger twin brother, someone who he was separated when he was younger. However, after a mysterious earthquake, Shou is suddenly carried in another world with two other students. In is in this new world that, after being attached by a monster, Shou suddenly unleashes great, white wings.
[Written by MAL Rewrite]