Miori, who was being bullied at school, tried to play the melodica during music class but suddenly felt discomfort and irritation in her mouth. When she looked at the mouthpiece, she saw a foreign substance resembling human feces, and immediately vomited, fleeing the classroom in tears. Clutching the melodica tightly, she stood helpless and broken. Then, a man approached her. From this encounter, a tragic story begins. Bonus images included exclusively with the DUGA release.