Miibomii is a Nopon NPC in Xenoblade Chronicles 3. She can be found at Llyn Nyddwr Camp in Ribbi Flats after downloading the Version 2.1.0 update. She is used to obtain amiibo exclusive content without having to scan the amiibos themselves.
Amiibo Content
By talking to her after completing the game and meeting certain conditions, weapon skins of Pyra and Mythra's Aegis Swords can be unlocked without having to scan their respective amiibo. Pyra's Aegis Sword is unlocked after completing the party's Soul Trees and Mythra's is unlocked after upgrading the party's blades.
After downloading the Version 2.2.0 update, she can give the party eight new outfits corresponding to the Noah and Mio amiibos. Consul N's Armor and the Leisure Time outfits for Noah, Lanz, and Eunie are unlocked after obtaining seven Nopon Seven-Star Medals. Consul M's Armor and the Leisure Time outfits for Mio, Sena, and Taion are unlocked after defeating Seraphic Ceratinia at level 150.
Etymology
Miibomii's name is a reference to amiibo.