Aizen created the kingdom key. in an attempt to protect the king, Yamamoto activated the kido cannon at the world of the living, killing the entire inhabitance in a sacrifice to protect the king. This site is based 5000 years after the event
bleach, edge, aizen, created, kingdom, attempt, protect, king, yamamoto, activated, #kido, cannon, world, living, killing, entire, inhabitance, sacrifice, this