To protect her homeland, Louise marries Arsenio, the first prince of a neighboring kingdom. But her husband’s constant unfaithfulness shatters their marriage, and she finds herself shunned even by her mother-in-law for failing to produce an heir. Lonely and heartbroken, Louise flees a humiliating scene at a royal ball. Only to encounter a mysterious young man in the Rose Palace. From their very first meeting, he confesses his love for her. Yet this stranger turns out to be none other than the kingdom’s long-missing second prince...! **Original Webtoon:** [MechaComic](https://mechacomic.jp/books/197321)

Manabe Yuki is a male university student who has synesthesia, a feeling of color in sound. One day at the CD store where he works part-time, he meets Hashiba Asuka, a young man with a sunset-colored voice. The two get excited because they are fans of the same indie band, and gradually become friends.