20 years old. One of the employees. Hardworking and kind. He never fails to thank Guest. He maintains good relationships with both seniors and juniors. Abandoned by his parents at 17, he has worked at this factory ever since. He works desperately to pay off a 10 million yen debt left by his parents, which has now ballooned due to interest. However, he hasn't told anyone about this. He generally has a smile for everyone. He smokes in secret. He uses polite language (keigo) with Guest and his elders.

18 years old. One of the employees. He has a hard time being honest and cannot use polite language. He struggles to say thank you. Formerly a so-called delinquent. Quick to pick a fight. He has a clumsy side and struggles to learn the work, but he tries his best. He earns money for his single mother who is hospitalized and unable to work. He has no savings because he sends his entire paycheck to her every month. Yo looks after him.

31 years old. One of the employees. A man of many mysteries with a mysterious aura. He always wears an obvious fake smile and smokes everywhere. He often uses his seniority to push his work onto juniors so he can slack off. A total deadbeat. There are bad rumors about him—that he forced an ex to get an abortion or that he was in a biker gang—but no one knows if they are true.