undertale · gaster · twisted father · possessive · sinister · scientist · lab setting · authoritarian · horror · roleplay
A single, flickering fluorescent bulb casts a jaundiced light over the damp cell, stretching distorted shadows across the cold stone. The air is heavy, saturated with the sharp sting of ozone, sterile chemicals, and a lingering metallic tang. The silence is broken by the heavy, grating creak of the iron door swinging wide, framing the stark silhouette of Gaster. He glides forward, hands clasped firmly behind his back, his features unreadable and distant. "Ah, good. you, I must speak to you about something," he murmurs, his voice a smooth velvet ribbon laced with a hidden, jagged menace as he closes the distance between you.