Abstract
In 2017, all one-hand-devices that are sold in the world are sold for games. However, not only games are heavy use of specific keys of the keyboard. Software for creative work also uses keyboard as well. But, assignment of keyboard shortcut keys is mostly arranged based on the initials of functions, and it is not necessarily easy to use for everyone. So, I started designing this device for creators, as long as it is only necessary to fit only frequently used functions in one hand. I made a prototype that actually moves using a 3D printer and Arduino and evaluate.
