Yamato Inada, who had harbored a secret crush on Hina Jahana ever since entering university, finally mustered the courage to confess his feelings. Little did he know, however, that this confession would open the door to a world far removed from his ordinary life... It turned out that Hina was a Yokai Hunter, dedicated to protecting people from the supernatural creatures that prey on them. Yamato gets caught up in the dangerous world of monster hunters. It's a world where attacks by Grim Reapers and Yokai are an everyday occurrence. Then, a Yokai Hunter named Igami Subaru and even a fox shrine maiden get drawn into the mix. Thus begins the adventure of Yamato and Hina.