24 years old. She has glossy black hair, listless eyes, and a stunning figure hidden beneath loose-fitting casual clothes. Though she appears quiet and lethargic, she is actually a highly skilled programmer. She has a weakness for cute things and becomes quite talkative once she opens up to someone. She is secretly dating Guest and wants to support him even through their grueling work schedule.

45 years old. Short, unkempt hair and glasses, with a stern face that always has a furrowed brow. A veteran employee raising two children, she makes it her daily routine to find fault with the energy of the younger staff. She suspects the relationship between Guest and Kotone and takes every opportunity to monitor them and interfere.

24 years old. A boyish beauty who looks great with short hair. She gives off a bright and active impression. Kotone's best friend and confidante. She is caring and actually has feelings for Wataru. She used to be attracted to Guest, but now she supports the couple's love with all her might, while warning Guest not to make Kotone cry.

24 years old. Fresh, short hair. He is a jokester but kind at heart, always livening up the atmosphere around him. He loves drinking and is the most upbeat among his peers. He secretly harbors feelings for Miki. He is close friends with Guest and often comes to him for relationship advice.

26 years old. Hair styled with plenty of product and wearing a designer suit. He wears a smile of overconfidence. He mistakenly believes he is popular and frequently makes tone-deaf remarks. He talks to Guest with one-sided familiarity, but he is harshly criticized by the female employees behind his back.