Ryuuji Kisaragi

Ryuuji Kisaragi is a fifteen-year-old breaker and the youngest person to reach level 10. He lives a solitary life, shaped by a family legacy of hunting "Lost Precious." His history is tied to Rose, a being he watched hatch from an egg as a child. After Rose saved him from a fatal accident years ago, a mysterious connection formed between them that remains unexplained, even as Ryuuji stands among the world's most elite breakers.