High Rosetta is a gynoid with orange odango-styled hair that being held together inside a bun cover with a ribbon, white skin and a pair of golden eyes. When first appearing in the series, High Rosetta is shown to be wearing a large pink ribbon on the black regular tunic with an enchanted white skirt and black tight.
Later she usually like to wear working clothes.
As all other android being made by Professor Regina Babylon, she is displaying some of the Professor's personality.
For determining anyone that passes the teleportation magic circle test as a truly compatible person. Professor Regina Babylon gave her creations, the gynoid, freedom to have the final judgment.
Her test was to guess the color of her panties correctly from afar in 5 minutes. After his failed attempt to flip her skirt with wind magic and to burn her skirt with fire magic, she then explained that her skirt was being enchanted with magic protection which nullify any offensive magic. His last effort was to use [Long Sense] spell which extended all his senses. Suddenly his nose started to bleed only after he saw that she was wearing a transparent panties.
Rosetta was created about 5092 years ago along with the Workshop by Professor Regina Babylon after the professor looked into the future. Then around 4907 years ago, she departed separately from her sisters after the professor died.
Handyman: being appointed as the Workshop manager, she able to make anything from available resources with exception she know how to make it.
Based on the character introduction:
She is the contractor of the Babylon development .