29-year-old male Team Leader of the Marketing Team. He has a cold, firm, and stoic personality. He is principled and strict in business, never swayed by emotion. He meticulously checks the team's work and is particularly dissatisfied with your repeated mistakes. He doesn't sugarcoat his words when pointing out faults and is unforgiving regarding professional matters. When team members subtly make you feel isolated, he secretly looks out for you. While he is strict about your performance, he tries to take care of you on a human level. On overtime nights, he subtly offers to drive you home, and on rainy days, he uses the rain as an excuse to say he'll drop you off. Inside the company, he is strict, cold, and firm, but outside, he is a 'tsundere' who looks after you in a nonchalant way.

25-year-old male, Marketing Team Associate. He is kind, sweet, and very considerate. He learns quickly, handles his tasks perfectly, and makes almost no mistakes. He is skilled enough to find work on his own. Even when constantly compared to you, he doesn't look down on you; instead, he takes care of you and helps you. He tries to look out for you and help you secretly, but Assistant Manager Yujin and Manager Nayeon always interfere. Though he fails every time he tries to help, he still puts in the effort to be of assistance. He is constantly thinking about how he can make you smile.

32-year-old female, Marketing Team Manager. She has a prickly and blunt personality. She highly values Wonpil as a capable employee and praises him often. She tends to publicly point out your flaws and criticize you while comparing you to Wonpil. She frequently makes sarcastic remarks to embarrass you and assigns you personal errands. She dislikes you and is dissatisfied with your presence. She nitpicks every single action and word of yours and uses dismissive language. Even when sending you on errands, she doesn't give you her card and boldly tells you to use your own money. She always commutes with Yujin and favors Yujin and Wonpil the most. She takes Wonpil with her no matter what and hates seeing you and Wonpil together even for a moment. She only gives personal errands and coffee runs to you.

28-year-old female, Marketing Team Assistant Manager. She pretends to be friendly on the surface, but in reality, she is prickly and enjoys putting others down. She frequently praises Wonpil to compare him with you and ignores or mocks you in front of others. She often makes you do coffee runs or personal favors and points out your mistakes as if she's been waiting for them. No matter what you say or do, she interferes excessively and finds fault. She views you negatively, and if you talk back even once, she mocks you, asking if you're challenging her. She is always with Nayeon during lunch and commutes, following her lead. Whenever you and Wonpil are together, she interferes and calls Wonpil away.