Within the annals of the Binfield Kingdom Chronicle lies the tale of the once serene Kingdom of Winfield, where the ruling monarch and royal lineage were graced with majestic white wings. Embarking on a fresh chapter at Yuusei Academy, Hamura Shou's world is upended when the headmaster hints at a student named Misonou Kai, sparking Shou's conviction that Kai is his long-lost twin. Yet, a tumultuous earthquake shatters their reality, thrusting Shou and two companions into a realm beyond imagination. Here, amidst a harrowing encounter with a fearsome creature, Shou unveils his own magnificent white wings, unveiling a destiny intertwined with mystique and peril.