On the subject of this guy feeling bad, being rekt by depression and his being in Japan, I do recall a number of social stigmas that are shared over many countries but one in particular is that even if you have say "weeks" of annual leave you quickly get regarded as
lazy if you dare to take more than 2 consecutive days off so that mindset probably resonates in other facets of life too.
Like say, working on a h-game? So somewhat of a self perpetuating spiral maybe, he feels depressed... then he realizes he hasn't done much work on his game because he took time to look after himself... then he becomes more depressed because rather than work on his game he... well...
didn't (for as valid a reason as any, his mental health).