Phantom Blood(ファントムブラッドFantomu Buraddo), initially referred to as Dai Ichi Bu Jonathan Joestar: Sono Seishun(第一部 ジョナサン·ジョースター ―その青春―Dai Ichi Bu Jonasan Jōsutā Sono Seishun, lit. "Part 1 Jonathan Joestar: His Youth"), is the first story arc of the manga series JoJo's Bizarre Adventure. It spans the first 44 chapters of the series, which were collected in Vol. 1-5 of the Jump Comics tankōbon editions.