Mitsuki, who was born and raised in a small town in Wakayama Prefecture, had always harbored deep feelings for her paternal uncle. Though her uncle worked in the city and rarely returned home for long periods, Mitsuki's heart never stopped longing for him. Unable to suppress her emotions any longer, she seized the opportunity when her favorite singer announced a concert in the city where her uncle lived. Using the excuse of wanting to save on accommodation costs, she told him she'd like to stay at his place. With that, she made up her mind to travel to the city alone.