nyawdao
how many captain's are stronger then the MC Author he shoots at least be in the top 5 at Maximum he should be top 3-2 so the MC got weaker doesn't he know of the threat of aizen ywach etc
we have Isshin Kurosaki (which the author did not introduce), he beat Ichigo's Hollow with just his Shikai.
abacaxi:Yoruichi must be stronger too, since at that time she is with the family's Zampakutō. Different from the anime/manga that he leaves her when she runs off with Kisuke.