Ok so i think i figured most of it out, the hollow in ichigo was always his zanpakto, and the guy "zangetzu" is the quincy leader and was just pretending to be ichigo's zanpakto this whole time? Oyea pardon my spelling on the names and what not lol but if som1 could tell me if im right or if im close. Thank you, and please don't bash me for not fully understanding whats going on.