Tokyo Ghoul's first opening theme, "Unravel" by TK from Ling Tosite Sigure, is a powerful and complex song that reflects the anime's themes of duality, identity crisis, and the struggle between two worlds. It's known for its dynamic structure, blending soft, melancholic verses with intense, chaotic choruses, mirroring Ken Kaneki's inner turmoil and the conflict between humans and ghouls. The lyrics convey a sense of fragmentation, loss, and a desperate search for meaning in a world that feels increasingly broken.