To whoever asked about chapters. The last chapter I remember seeing animated before the filler arc was volume 21 chapter 181, and the things that people seem to think indicate the end of fillers are coming from volume 21 chapter 184-185. Read if you dare...

Also the most recent chapter was volume 29 chapter 257 so 77 chapters divided by about 2.5 chapters per episode comes to around 30 eps, but there's probably room for more padding in certain places.