Overview
Muyuu (ムユウ) is a Yume Nikki fangame made by Furatsuki (Pixiv). The main character's name is also Furatsuki, and seems to be locked in her room. (Attempting to leave just has a door sound effect.)
Gameplay
Muyuu plays likemost Yume Nikki fangames, focusing on exploration and collecting effects.
Download
The password is 246, put that in the box and click the grey button to download.