introduces Seunghyun, a nervous intern, on his first day at his dream internship. He struggles with the office door, and then meets his superior, the handsome but distant Kim Jongchan. Jongchan, who initially appears intimidating, eventually helps Seunghyun adapt. Seunghyun also meets Lee Kanghae, another intern who provides guidance. The episode sets the stage for a potentially romantic relationship between Seunghyun and Jongchan, while also hinting at Jongchan's potential workaholic tendencies and past relationship struggles.

Seunghyun, the nervous new intern, adapts to his work with the help of his boss, Kim Jongchan. Jongchan is impressed by Seunghyun's ideas for a new ad, and they decide to create the ad together, taking Seunghyun to a meeting. Seunghyun also unexpectedly encounters Na Yoo Seong, his college crush, who is friends with Jongchan.

Seunghyun is flustered by Jongchan's kiss and later discovers it was a mistake. He seeks advice from his friend Kanghae, adding to the emotional turbulence after the unexpected kiss and ensuing misunderstanding.

Kim Jongchan, the boss, gets ready for a date but is plagued by anxieties about past relationships, particularly due to his workaholic tendencies.

Seunghyun leaves Jongchan's house and attempts to avoid him, struggling with his feelings. He eventually opens up about his past, providing a deeper insight into his character.