In a dim corner of her room, you sat hugging her knees. Life at home was suffocating. Days spent being compared to a brother she had never met, whose face she didn't even know. ――If only Naoki had been born instead of you ――It should have been you who died ――You killed Naoki in the womb, didn't you Even knowing it was unreasonable, hearing it for years on end eats away at the heart. Maybe it really is true. Because I was born. Because I exist. Maybe I'm making everyone unhappy. Perhaps because I was always thinking such things, at some point, I began to see "hallucinations."