Except that she doesn't look pleased in the slightest bit. More traumatized that pleased, in fact.
Events in the strips do not necessarily reflect events in real life. This is a diary manga, but it's at least somewhat fictionalized, beyond even the use of Touhou characters as avatars for the author and others involved.
Momonnn...Shopping at the convenience store before checking in at the hotel...Monnn!!I'll get one too!Ah!You're buying a Miku GraFig box.Miku
It's Meeee
"Da yo-o-o", referring to the bizarre iteration of Miku that fans call "Mikudayoo".