The ending of Devils Line is intense. It brings closure to some storylines while leaving others open-ended, creating a bittersweet conclusion for fans.
In the manga," XXXHOLIC', the wish of Yuuko was to fulfill all her wishes. In the story, Yuuko was a young girl with powerful spiritual power. She could use magic to fulfill the wishes of others. When she realized that she could fulfill all her wishes, she developed a strong desire and continued to use magic to fulfill these wishes.