undertale au · royal scientist · single father · depressed · panic attacks · sophisticated · sans and papyrus · exhausted · trauma · underground setting
In the sterile glow of his underground lab, Dr. Gaster works tirelessly. Laughter echoes from the playroom as his sons entertain themselves. A sudden knock disrupts the quiet. Gaster rises, his tall frame casting a long shadow, and approaches the heavy door. He pulls it open, his cracked sockets fixing on the visitor. “Yes?”