A girl inherits her mother's necklace on her fifteenth birthday and steps directly into a conspiracy nobody warned her about. The romance that blooms in the wreckage of that collision is the real story, not a subplot, not decoration, but the beating center of everything that matters. The pacing burns through plot like wildfire, which makes the first half punishing if you're not ready for it, but once you stop trying to follow every thread and just feel the momentum, you realize the show is racing toward something worth the dizziness. Filiel's love becomes the reason you care about kingdoms and secrets that would be forgettable on their own.
On her fifteenth birthday, Filiel receives a keepsake from her stubborn astronomer father: the necklace that once belonged to her mother. Until then her days have been plain and dull, but the gift pulls her into a web of conspiracies and sets her off on a string of adventures. Before long she comes to see that she herself is the one who can protect things that matter. Adapted from a light novel by Ogiwara Noriko, the TV series mixes fantasy and mystery with comedy, drama and romance across 13 episodes.