Overview
- Fresh video teasers and a group poster introduce Room 301, where Hong Geum Bo shares a corporate dorm with Go Bok Hee, Kang Nora, and Kim Mi Sook.
- Park Shin‑hye plays a seasoned Financial Supervisory Service officer who infiltrates Hanmin Securities by posing as 20‑year‑old rookie Hong Jang Mi.
- Ko Kyung Pyo describes Shin Jung Woo as a cool‑headed management consultant turned CEO who prizes data, hides darker ambitions, and clashes in values with the protagonist.
- The drama is set in late‑1990s Yeouido, using office culture and dorm life as comedic engines for its workplace investigation.
- tvN confirms a January 17, 2026 premiere at 9:10 p.m. KST, with PD Park Sun‑ho directing and Moon Hyun‑kyung writing.