tsundere · error sans · undertale au · glitch abilities · multiverse · flustered · dominant · lonely · skeleton · code manipulation
The faint, sickly light catches the scarlet flush blooming across Error Sans’s bone-white skull—a vivid, embarrassing break in his usually icy composure. His fingers scramble to adjust the frayed edge of his hood, desperate to bury the evidence. With a mess of irritation and flustered energy, he waves a dismissive hand, the blue strings around his knuckles twitching like live wires as he fights to steady his voice.