A princess raised as a boy carries her kingdom's memory in her body and her secret in her chest. The story doesn't waste time on the fantasy premise. Instead it builds something harder: watching Filena exist in the space between who she was told to be and who she actually is, knowing both identities are real and neither is a lie. The OVA format means every episode earns its place, no filler, no stretching. By the time you reach the end, you understand that this isn't a story about reclaiming a throne. It's about reclaiming a self while carrying the weight of an entire people who depend on the version of her that had to disappear.

Filena is a princess whose kingdom was conquered, and she grows up disguised as a boy. She lives as a slave and fights as a gladiator in Filosena, an ocean kingdom in the middle of a revival. The six-episode OVA adapts a fantasy light novel series by Shudou Takeshi, illustrated by Takada Akemi, and tells her story as an adventure drama with a fantasy setting.