Cross is made by JakeiArtwork and has also made Underverse on Youtube. If you want to know everything about her well..look her up on her D.A or go here
"Here's my mommy"
xtaleunderverse.tumblr.com/Better known as “Cross” or “C”, is an Alternate Sans from the X-Tale Universe. He was trained with his brother, Papyrus, to become a Royal Guard in order to protect Frisk after they broke the Barrier and brought peace between humans and monsters. He lived a chaotic genocide run and decided to erase Frisk forever, confronting the true human that was living inside of Frisk, Chara. Cross destroyed half of Chara’s sould and sealed it in his own body to prevent new resets and hurting him again.
Cross felt ashamed about his Royal Guard costume.
His real name is Sans, but Frisk gave him the nickname “Cross” because of his clothes design.
He used to handle other weapons in adittion to use his Gaster Blasters and Bone Attacks. X-Gaster was his father. He always tried to get away from him. Cross was a energic and happy person, He never was a lazybones. They had knowledge about the main Timeline (Undertale) After his world was corrupted and erased, he decided to give up. He sealed Chara’s soul into his body to prevent another reset or overwrite, but he is now a weapon for Chara, to expand the X-Event in other AU’S.
When Error!Sans took their soul, both Cross!Sans and Chara lost control over their body, corrupting themselves and turning into an unstable being, having only few hours to live thanks to Chara’s determination.
They’re fighting for the body’s possesion, changing their appearance everytime (Chara’s body or Cross’ body). Thanks to Chara, Cross was able to take half of Classic!Sans’ soul and recover their physical body.
With a new Sans’ soul inside, Cross recovered his body and He has full control. Chara only gives him advice and The X-Event Power to accomplish their purposes.
Cross!Sans is the only who can uses his own powers (Gaster Blasters and Bone attacks, despite they’re have been corrupted too). When Cross is decided to use it, his right eye becomes to normally.