Itβs great how the four girls have different friendship dynamics within the group. Mio and Ritsu have been friends a long time, and you can tell by how much Ritsu delights in torturing Mio and in how Mio whacks Ritsu when sheβs getting a little too off the wall. But they each have a distinct relationship with Yui and Mugi, too. Yui and Ritsu feed off each otherβs silliness, and the more sedate Mio and Mugi have some nice moments together as well. Itβs just nice that theyβre friends as individuals, as well as as a group.