Ao Kirishima encounters a collapsed woman on the street. Having learned CPR from his father, Ao rushes to her aid and does everything he can to help. Thanks to his actions, the woman survives—and her daughters turn out to be the strikingly beautiful twin sisters in his class, Yuzuki Kotobuki and Hikari Kotobuki. To express their gratitude, Yuzuki and Hikari begin searching for Ao. “I’ll definitely make you fall for me.” “I’ll make sure you come to like me.”
Magu's life turned upside down after he gained the unique skill called "Decoy." This ability attracted monsters and led to chaos, resulting in his eventual banishment from the city. In an attempt to live in solitude, Magu took refuge in a hidden hunting cabin deep in the mountains. But his plan to live alone was short-lived when he caught the attention of three remarkable and stunning Divine Beasts: Dragon Loa, Phoenix Fiana, and Maera Kelpie. While struggling to adjust to his new companions, the "Decoy" skill continued to create hindrances and complicate his pursuit of a peaceful life.