A girl meets a ghost in a lion mask the day she buries her mother, and that impossible thing becomes the only real comfort she has. Twin Spica doesn't explain ghosts or justify them, it just lets them exist quietly in the space where grief lives. By the end, you're not watching a story about a dead mother anymore. You're watching a girl decide what she wants to become, and a ghost who loved her enough to step out of the way so she could.

Asumi's childhood is marked by tragedy. When she is a baby, a rocket crashes to the ground and leaves her mother badly hurt, and after five years in a coma her mother finally dies. Grieving for someone she barely remembers, the young girl meets Lion-san, an odd figure in a lion mask who says he is a ghost. He helps her bury her mother's ashes, and afterward Asumi settles on a goal of her own: when she grows up, she will be a rocket pilot. Twin Spica is a drama with science fiction and supernatural elements, built around a child finding direction after loss.