It's a real shame that the concept of the ideal of being a contributing member to society getting crushed by the endless slog of pointless work demanded to keep the gears of our capitalist system running is so presently universal that one probably only need to know that 働く _hataraku_ means "work" to viscerally understand what this song's about. Speaks of course of this person's songmaking skills as well, that one could probably get this song from the melody alone.
