Looking in the Mirror

"The moon in Shura City was extraordinarily round that day. I only remember one person hugging me tightly. At the moment he thought was the happiest, I stabbed his heart with a silver hairpin filled with evil spirits. He was defenseless..." A girl who is ignorant of the world while walking in the galaxy meets Hades, who is in the hell of life and death. Just because of an awkward first encounter, she became his personal maid. She gave him a full red moon to accompany him day and night. But no one remembers that a long time ago, he first met her in the corner of water and sky, and the spiritual contract formed between half of their hearts became the sharp blade that killed him...