Omake Gif Anime - Pastel Memories - Episode 3 - Yuina Fist Pump

Michi, Yuina, and Kaoruko returned from a successful mission of ridding viruses from another anime world.

The memories that need saving this time are personal for Michi, whose hobby is doll dressmaking and has fond memories of watching "The Rosy Maiden" with her friends Yuina and Kaoruko. Maya was bouncing along there, of course, but the trio made quick work of her.

The sub-group's mission gave them the idea for the next cafe event to increase sales - Rozen, er, "The Rosy Maiden" themed cosplay and memorabilia. I see Kaoruko and Michi dressed up as Shinku and Suigintou, but I couldn't place Yuina's character. Yuina looks like she's serving up extra helpings of milk there...