Ryōta spent years staring at the sky to keep a promise to a dead girl. When someone who looks exactly like her walks through his classroom door, the show doesn't let him have the catharsis he's been building toward, it hands him a refugee with abilities and a body count, and asks if he can love her anyway. The magic doesn't matter. What matters is that he has to choose between the ghost he's been faithful to and the real person standing in front of him, and there's no good answer.
Ryota has spent years staring at the sky, haunted by a promise he couldn't keep. His childhood friend died in an accident he couldn't prevent, and now he chases that old dream alone: proof that aliens exist. Then Neko transfers into his school, and she's a mirror image of the girl he lost. But Neko carries secrets darker than nostalgia. She's a fugitive from a clandestine research facility where she was engineered to wield powers that blur the line between magic and science. People are hunting her, and her appearance in Ryota's life isn't coincidence. As he discovers what she truly is, he's pulled into a dangerous world where the line between salvation and exploitation dissolves. What starts as a ghost story becomes something far more complex. Ryota must decide whether chasing the past will destroy them both, or if somehow, impossibly, their reunion means something beyond tragedy. The sky holds answers neither of them expected to find.