>>28716The scene with Ecchan was from vol2! So it's not a rigid vol1→ep1, vol2→ep2, vol3→ep3 as you suggest.
I think the reason they cut all of those scenes is because they didn't want to introduce another major character in the Landlady, I think they thought that would be too much to take in. So I'm hopeful they'll include those scenes in the next episode when they introduce her. I don't think they're going to be systematically removing the scenes with the landlady the entire time, they just wanted to push those scenes one episode later most likely.