J.O.S.I from Jonathan Ian Mathers's Podcast "Squirrels and Robots" is ready for action
If you want her for your Miitopia adventure, the access code is 3J1FJ2Y

Note: If you can't find her
Try any of the following methods
- reboot your console
- leave the Mii characters tab on the Miitopia start screen's menu then re-enter and try again
- turn off sharing for a brief second then turn it back on again