Shota-kun repeatedly plays naughty pranks on his ballet instructor, Roa. When he starts his lesson wearing the leotard she gifted him, Roa is surprised but gently guides him through the class. However, Shota-kun can't concentrate, constantly distracted by Roa's big breasts. His innocent curiosity and playful actions lead to unexpected developments. A sweet, sensual atmosphere fills this story where the world of ballet intertwines with budding romance.