Saw the raw and read the trans for 406.
Spoiler for 406:
It looks like Appachi asked for borrowed time to save Kenichi. Really, really enjoyed how Appachi took care of the sword masters.
Geez, that hit was brutal, sent the guy flying from the floor they were in straight to the bottom of the base. We also go some fanservice from Miu and Shigure, escpecially Shigure.
It looks like Appa might die by next chapter if going by the chat he has with Kenichi at the end of the chapter.