I can't believe the mangaka has a regular job and uses her free time to draw manga. And she even has to squeeze work into her commute time?
Someone tell her to take a break before she dies of overwork.
That's what a lot of mangaka have to do, sadly. Maybe do part-time jobs to supplemt income, or draw when they have time while commuting or doing a full-time job.
Also, this story has relatively simple art style compared to something like Berserk, so it's not quite as daunting of a task.