Board Thread:Questions and Answers/@comment-5693502-20141219175924/@comment-5553481-20141221151336

Mikaelobos wrote: To be fair Urahara apparently uses souls for almost all of his inventions so it doesn't seem as though the process is unheard of, but it is an obvious moral issue that everyone in the series just seems to be okay with. Umm, where did you get that sort of information from? The only "invention" that has anything to do with souls, or rather something within the souls, is the hogyoku, as seen when young Gin was spying on Aizen because his goons took something from Matsumoto's soul.