Just can't wrap my head around the archetype I've seen in manga of girls that just constantly wear masks, must be some Japanese fashion that I'm completely unaware of.
Worth reading honestly, the manga itself is far too cute to be held up by what was, probably, a poor character development planning decision by the mangaka.
You know I kinda really like the dedication to portraying the abstract mentality of an AI. No normal human would make such insane leaps of logic in order to justify that this adult man is definitely just a large baby.