I'm looking at the Asian Scans right now, and I can guarantee that the summary is not correct for Chap 301. Nnoitora, Haibel, Kenpachi, etc do not show up. At least in Chap 301.
However, I will acknowledge the possibility that those scenes will occur in Chap 302.
Nobody is perfect. I am a nobody.
Therfore, I am perfect.