This one-person musical follows a lone survivor who seals himself inside bunker B-103 after a mysterious virus devastates the world and leaves cities abandoned. With supplies intended to last a year, he attempts to endure the aftermath in isolation, but as time passes, his sense of reality begins to fracture. Memories resurface, routines distort, and the bunker shifts from refuge to confinement.

Structured as a mix of live performance, video diary, and concert, the piece is driven by a rock score and immersive sound design. Written by Jishik Kim and Seungyeon Kwon, with dramaturgy by Jethro Compton and direction by Daljung Kim, the production examines survival, perception, and the psychological toll of prolonged isolation.