Gast is the primary owner of Gast's Cleaning which is located close to the central fountain in Poqui Town. He will claim that Poqui Town is clean because of his company.
During the Fall/Autumn, once Poqui Town has been unlocked, the protagonist will obtain mail from Gast informing them about a part-time job that is available at his work place, thus allowing Event 26 - Part-time cleaning job to take place whenever the protagonist visits.
Upon the protagonist's arrival, he will explain to the protagonist that one of his workers has food poisoning, so he cannot work his shift. Gast needs the protagonist to collect garage with the provided garbage truck body (Choro-Q014). After completing the job for the first time, he will award the protagonist the garbage truck body. All subsequent jobs completed will only provide 5000G as the reward, with Gast encouraging the protagonist that they are the right fit for the job.

Trivia
- Rosemial, the garbage truck who can be found driving around Brachy Town, may also possibly be an employee of Gast's Cleaning. Vabach may also be an employee as he talks about keeping Poqui Town clean.
- In one of Gast's dialogue, "Gast's Cleaning" is misspelt as "Gasts's Cleaning".
Game Dialogue
General Dialogue
- "This is Gasts's Cleaning. The town is clean because of us."
- "You there. You seem to like cleaning. I like those who like to clean!"
- "This is Gasts's Cleaning. One of my workers isn't feeling well. I'm worried..."
Letters Dialogue
- "Part-time job! A garbage collection job. We're located near the fountain in Poqui town. Looking for a hard-working, clean individual."
- Gast's Cleaning
Event 26 - Part-time cleaning job
- "You came at a good time! One of my workers got food poisoning, so he's out. So I want you to collect the garbage from Poqui Town."
- (No): "Come back anytime. I'll give you work."
- (Yes): "Of course, I'll prepare a body for you to go. I'm counting on you."
- (Failed): "Hey! I don't see your heart go into your work. Come again."
- (Success): "Great! I think you really qualify for this job. Here's your salary. You get the body too. Come back anytime. I'll give you work."
- (Yes): "I'm counting on you."
- (Success): "Great! I think you really qualify for this job. Here's your salary. Come back anytime. I'll give you work."