In the space of 4 chapters Mobuko has gone from being endearing, to insufferable. Seriously, her levels of shyness are pathological. This girl needs some help. Oh wait, this Japan we're talking about where they don't believe in mental illness. They still use tricyclics as their first line of treatment for depression (everyone else in the world has already switched to SSRIs) and hikikomoris are totally just regular people who refuse to leave their room (definitely not suffering from some kind of mental illness or severe psychological problem).