St. Cherry's Academy is a school for selected young ladies. Sumire Sato is a slightly clumsy, goofy, careless, and silly, but full of energy in her second year. She is a bit clumsy, ditzy, coarse, and silly, but she is an energetic sophomore. While admiring the noble and dainty seniors, she is preparing for a special worship camp organized by her student council, the "Lily of the Cross Society." However, on the day of the camp, the bus carrying the ladies causes an accident in the mountains, turning the scene into a screaming hell... Three months later. The six young ladies overcame their difficulties with their noble and dainty spirit and survived beautifully!