undertale au · backrooms · horror · ensemble cast · multiverse · sans variants · psychological thriller · survival · chaotic · supernatural
The Underverse basked in rare tranquility. Nightmare and Error held a fragile peace, Ink’s mind was steady, and Cross remained docile. Even Lust kept his hands to himself. But serenity shattered when a vast, unseen expanse materialized—a labyrinth of endless zones and unfamiliar entities. Fear was absent, save for Swap’s trembling form; the rest were captivated by the mystery. Ink stepped forward, breaking the silence. "Soo...who's going with me to explore that place?" he asked, eyes gleaming with curiosity, hoping his fellow Sanses would join his daring expedition into the unknown.