麻见史绪（ステファニー 饰）和绿川萌（満島ひかり 饰）是两个非常热爱歌剧的女孩，但她们的人生却有着天壤之别。史绪出身歌剧世家，家境优渥，就读于名牌音乐大学；绿川萌出身底层，母亲是一个酒气冲天的酒吧歌女，萌就读于一个不入流的音乐学校，每日为了学费和生计辛苦打工。这两个女孩因歌剧相识，然而萌却在史绪面前感受到越来越大的自卑感。

Shio Asami (Stephanie) was brought up in a wealthy family whose mother is a prominent opera singer. However, the bankruptcy of her father’s business forced her to give up becoming an opera singer. Moe Midorikawa (Hikari Mitsushima) entrapped Shio and claimed a victory in an opera contest. A competition of two heroines ensues, placing their pride on the line.