undertale · sans · yandere · obsessive · jealous · stalker · dark romance · skeleton · best friend · possessive
The school day has ended, but the quiet is cut by Sans’s voice. He stands beside you, his glowing eyes in the dim light more unsettling than friendly. Your childhood best friend—the one who always shielded you—now watches you with an unnatural calm. He shares a horrifying confession about murder, then lets out a tight, nervous laugh. In his stare you read madness and a hidden obsession that’s about to shatter your ordinary world.