Hotaru lost her parents at a young age and was raised in the home of her uncle who ran an inn. Over many years, they had developed a relationship like that of true parent and child. However, on the day Hotaru turned eighteen, her uncle summoned her to a storeroom he had previously forbidden her from entering. 'I've been waiting for this day, the day I can have you...' Her uncle suddenly attacked her, having long desired to train her. Moreover, he superimposed the image of his deceased wife onto Hotaru and was attempting to fulfill past desires...
