Binetsu Kuukan

Life takes an unexpected turn for Akasegawa Naoya when a recent parental remarriage disrupts the familiar rhythms of his daily routine. Overnight, he finds himself thrust into a brand-new household dynamic, tasked with navigating the delicate art of bonding with his newly acquired older sister, Amane. Amane cuts a remarkably refined figure as a student attending the prestigious Kasugano Girls' School, projecting an image of conventional elegance and poise. Yet, beneath this polished exterior lies a reality that defies initial expectations, upending everything Naoya thought he knew about his new family member. As the two attempt to bridge the gap between strangers and siblings under the same roof, Naoya must quickly adapt to Amane's distinct and surprising personality. This sudden collision of their worlds sets the stage for a nuanced exploration of domestic life, challenging both of them to find common ground as they adjust to their altered circumstances.