Byakuya Togami, the heir to the Togami Conglomerate, faces a sudden attack during his visit to Prague with his biographer, known as 'Blue Ink' from Hope's Peak Academy. Stripped of his identity and attire, Byakuya witnesses the impostor's threat to seize global control within 24 hours unless stopped. Amidst the chaos fueled by the enigmatic 'Despair Book', Byakuya and Blue Ink must evade assassins, striving to unveil the unsettling truth behind the unfolding chaos.