539. Prob-less, Progress

Akon returns to the SRDI to find that Captain Kurotsuchi is working on something in secret. Meanwhile, Nimaiya tells Ichigo to bid farewell to Zangetsu.

Summary:

Characters in order of appearance:
 * 1) Akon
 * 2) Female Researcher
 * 3) Mayuri Kurotsuchi (video only)
 * 4) Nemu Kurotsuchi (video only)
 * 5) Mareyo Ōmaeda
 * 6) Marechiyo Ōmaeda
 * 7) Marejirōsaburō Ōmaeda
 * 8) Suì-Fēng
 * 9) Sajin Komamura
 * 10) Sajin Komamura's Great-Grandfather
 * 11) Ōetsu Nimaiya
 * 12) Ichigo Kurosaki
 * 13) Asauchi