Anne walks into this world already understanding something most isekai heroines never figure out: the person beside you matters more than the quest ahead. Challe starts as her possession and ends as the only person who actually knows her, which flips the entire power dynamic without needing to announce it. The show trusts that slow-burn chemistry between someone who refuses to own another person and someone learning he doesn't have to be owned.

In the kingdom of Highland, humans enslave fairies by taking one of their wings, which gives the holder power over the fairy's life. Fifteen-year-old Anne Halford dreams of a day when fairies and humans stand as equals. An aspiring confectioner, she hopes to follow her late mother and earn the title of Silver Sugar Master by winning a royal medal at the Royal Candy Fair in the capital, Lewiston. For the dangerous trip there, she rescues Challe, a sharp-tongued warrior fairy, from a cruel trader and hires him as her bodyguard. She promises to give his wing back once they reach the capital, which leaves him puzzled. Anne wants his friendship, but Challe is reluctant and would rather escape his servitude. As the road goes on, the two come to learn more about each other and what they truly want. The adventure unfolds as a fantasy with romance woven through it.