- "I want to be friends with <Mii>."
- — Mii, Tomodachi Life
A friend is a relationship in Tomodachi Collection and Tomodachi Life. When Miis become friends, they hang out with each other often, either talking to each other in their apartments, playing with different gifts, or going to different places. If two normal friends spend time with each other long enough, they could become best friends; if a Mii develops feelings for another Mii of the opposite gender, they could establish a Sweetheart relationship.