Fishbone D holds the distinction of being Ichigo's first real encounter with a Hollow—and the catalyst that kicked off his entire Soul Reaper arc. Rather than seeking out Ichigo directly, Fishbone D attacked his family, forcing Ichigo's hand. With no other option, he accepted Rukia's offer to borrow her Soul Reaper powers, though he ended up taking way more than she bargained for. That power boost was enough to take down Fishbone D, cementing him as the Hollow that essentially launched Ichigo's career as a Soul Reaper.
Content compiled by AnimeList.moe from publicly available sources.
