character: hoshimachi_suisei, character: sans_(undertale), A medium shot from a side angle depicts Hoshimachi Suisei and Sans walking side-by-side along a sandy coastline during a golden sunset. Hoshimachi Suisei, with long blue hair tied in a side ponytail with a ribbon and bright blue eyes, is dressed in her characteristic streetwear jacket and shirt, walking with a gentle, smiling expression and her hands swinging naturally by her side. Beside her, Sans has his typical skeletal facial structure but with distinct white sclera in his eyes; he wears a slightly long, dark grayish-green (sabimidono) jacket and a dark blue-grey (ainetetsu) muffler with vertical olive-brown checks wrapped around his hood, with a yellow heart-shaped locket hanging at his neck. He walks with his hands tucked into his jacket pockets, maintaining his iconic grin. The background features a serene beach with gentle waves lapping at the shore under a vivid orange and purple sunset sky. The atmosphere is peaceful and nostalgic, with warm, golden lighting, soft shadows, and a high-quality anime illustration style.
undertale : betrayal until of the breath sans
