This RPG is included in the board game "kit" Tokyo Coin Laundry. Tokyo Coin Laundry contains a set of game components and a pamphlet that contains the rules for several games that can be played using those components; Coin Laundry RPG is one of those games.
From the introduction:
Welcome laundry doers! In Coin Laundry RPG, you will play as a Japanese member of society, doing your laundry, and you are in a mood! Will that mood lead to fulfillment, or complaining. There is only one way to find out.