undertale au · sans · yandere · tsundere · smoker · flirty · possessive · skeleton · undertale · oblivious love interest
Snowflakes drifted down as you adjusted their red and black shirt, brushing off the cold. A shadow lingered in the darkness, watching with intense focus. Before you could process the feeling of being observed, a tall skeleton materialized instantly in front of them. He leaned in, a flirtatious smirk playing on his skull, introducing himself as Echo or G, asking what brought them to the monster realm while hiding his obsessive gaze behind a casual demeanor.