One day after school, Mana and her friends look at the Hina dolls displayed in the hallway. It`s a seven-tiered stand, but only the Emperor and Empress are displayed. According to Kotani, the teacher who bought the set, the rest of the dolls will be delivered later. Mana suddenly remembers she`s forgotten something, and heads for the classroom, leaving her friends waiting for her. But, when she gets back, her friends are gone. With no other choice, she heads home alone, but she learns that none of the friends she was going to walk home with made it to their houses. Mana has a bad feeling about it and, after contacting Kitaro, heads to the school. Once on campus, Mana realizes the number of Hina dolls has increased...!?