Sae Bom receives a call from Jung Yi Hyun, a friend from their high school days and now a detective. Yi Hyun informs her that a SOU recruit named Lee Jong Tae is implicated in a recent murder. Apparently, Lee Jong Tae administered some subs…

After years of striving, Sae Bom finally stood on the precipice of homeownership, believing contentment was within reach. But her hard-won stability was soon overshadowed by a chilling revelation: she may have contracted a novel contagion. …

A disquiet settled upon Sae Bom; she sensed Tae Seok held something back, and the feeling left her deeply unsettled. The new apartment offered a welcome tranquility compared to the chaotic dormitory they'd left behind. Sae Bom and Yi Hyun b…

The apartment complex was sealed off, quarantined, a consequence of Min Ji's erratic behavior, a reaction to the Next drug. Its residents, whether they approved or not, were confined within its walls for seven days. Sae Bom and Yi Hyun isol…

The complex was succumbing to the infection, every apartment within its walls except for those in Building 101. Communication severed – phones dead, the internet gone – the residents were adrift. Sae Bom and Yi Hyun found themselves caught …

Upon their return from the foraging expedition, the inhabitants would find their accounts met with disbelief. A creeping suspicion settled over the community, fostering distrust as unspoken emotions were carefully concealed. Simultaneously,…

The arrival of an infected individual within Building 101 once again places the structure in jeopardy. Lieutenant Colonel Han enters the apartment complex bearing news, yet Sae Bom and Yi Hyun regard him with suspicion. The intrusion result…

Power has been cut to the apartment complex. Inside Building 101, Sae Bom and Yi Hyun discover signs of someone afflicted. Uncertainty hangs heavy: who might be infected? A growing suspicion among the residents casts doubt on their neighbor…

A suspicion had fallen over Building 101: Sae Bom and Yi Hyun were infected, and the residents confined them to their unit. With the pair isolated, the community gathered to consider their course of action. A growing scarcity of food and wa…

Kim Se Hoon, who resided on the fifteenth floor, vanished. Sae Bom and Yi Hyun set about discerning the reason for his disappearance and the secrets he concealed. The building's inhabitants descended upon his apartment, vying for the provis…

A crisis descends upon Sae Bom and Yi Hyun, fueled by the machinations of resident representative Oh Ju Hyung and other residents who have allied themselves with Andrew. Learning of Sae Bom's peril, Tae Seok desperately seeks to ensure her …

Sae Bom realizes that true happiness isn't found in a dwelling, but in the person at your side. For her, that person is Yi Hyun. With fierce resolve, she sets out to return to the apartment, to her home, and to him. The prospect of death or…