Title screen of ver.1.0.
Himi Nikki (ひみにっき, Secret Diary (Himi derived from Himitsu (秘密, secret))) is a Yume Nikki fangame by Madotsuki-neko starring Waka. According to the creator, it is a short game that would be followed by other parallel games from different character perspectives.
Waka is a music student. For some reason she finds herself terrified to go out of her bedroom. Listening to her Music Box makes her fall under the effect of a spell cast over it.
The point of this game is understanding Waka's feelings and story. According to the creator's blog there are 3 endings so far, one of them is the "true end" and the other two are bad ends.
As of ver.0.1, the game lacks music.