Serendia Academy is a distinguished academy dedicated to nurturing refined ladies and gentlemen, so girls are required to take ballroom dancing and tea party classes. Since Monica lived in isolation in a mountain cabin for a long time, she must re-take her ballroom dance test. Monica was already struggling, and to make matters worse, the tea party announcement was made. Her group is Monica’s friends Lana Colette and Casey Grove, as well as Claudia who is an intelligent woman known as the “walking library.” How will the tea party and Monica’s re-examination for the ballroom dance go?