Name: Gemini Zodia Gaster, Goes by Gem
Age: she's a bit older then Sans
Family: she is the older sister of Sans and Papyrus
Gender: female
Species: monster (has traits of a Skeleton monster but doesn't look exactly like one)
Personality: Gem is lazy and highly intelligent, being a scientist that studies the multiverse and timelines. People who dont know her see her as crazy, between her randomly falling asleep (thanks to her Dream! AU counterpart) and never sleeping longer then 15 minutes, she still finds time for who she cares about
Powers: she has the same magic as sans, telekinesis and healing as well as Gaster Blaster tech. She can also teleport and has some level of super strength
Backstory: Gem was created in a lab by a man named WD Gaster, the royal scientist before Alphys and the father to Sans and Papyrus. She was raised as his daughter, being the only successful creation of a monster without a mother and holding an artificial soul. She had a wife previously, a dragon monster woman named Karma who died from a heart disease. After she passed Gem started drinking, often passing out in the snow in her front yard after a night of drinking alone. Though her wife died a very long time ago, shes incredibly lonely and mostly focused on her research. If one was to speak to her Dream! AU counterpart, she would say that most Gems would wind up with some other monster, but the original one never found someone she loved again. Her Ink! Counterpart agrees, noting this particular Gem to be the only one to not find another partner, and that if she had organs the drinking would probably kill her
Looks: she looks like a pale human with blue eyes, she is however, a skeleton monster