Akuma no Mikata

Kou Doujima is a high school student who endured a non-normal childhood, which significantly impacted him. He insists he saw his younger sister taken by a UFO, but others dismiss his claim. As a result, he faces frequent bullying and learns to cope alone, leading to a deep distrust of others. One day, a young girl appears at his door and declares, “I’m the devil. I have granted your wish and I’m here for your soul.”