Vagabond Manga Omnibus volume 4 collects volumes 10-12 and features story and art by Takehiko Inoue.

Musashi endeavors to take on sword master Yagyu Sekishusai, a man recognized by many to be the greatest swordsman of his time. But with Sekishusai far past his prime, does Musashi truly believe that killing a seemingly helpless old man in his sleep will take him further along the path?