Saiki k netflix i'm confused?

Just watch the last episode of Saiki K Reawakened and I'm confused. The last episode does not refer to the previous one and confuses more like the first one because someone can clarify it

As far as I know, the Netflix series adapts a few manga chapters that were not included in the original series the disastrous life of saiki k.

So these are episodes that play chronologically somewhere within the original series and are therefore all independent of each other.