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I'm guessing by the expressions and background in this and the following page that Mom's mind is failing to compute NEET-chan taking initiative in cleaning up and being productive around the house for once. I mean just compare her room here to post #2648063 and post #2662933.

EDIT: Also her state of dress.

Isn't this burying the lead a little?

Shouldn't her reaction be, "Wait, YOU have FRIENDS?!"

It's honestly the best thing that could happen to her to actually help cure her problems, and the results are pretty self-evident just off the bat.