Many 3DS owners will have now dabbled with Nintendo Letter Box — also known as Swapnote — and have become familiar with Nikki, the rather helpful guide. She pops up often to help scribblers learn about new features or templates and is an all-round friendly, charming Mii.
If her regular visits aren't enough, you can now download her official (Japanese) Mii using the QR code below. She'll at least help your Miis to stay in touch with each other.
If you need a reminder of how to download Mii QR codes, check out our handy guide to using QR codes on Nintendo 3DS.
Thanks to Nintendaan for the code.