The protagonist, Kenji, is living with his adopted sister Yuki, who admires her older brother and harbors a slight secret crush on him. One day, after a certain night, a girl - Hiyori, their childhood friend - begin to appear in Kenji's closet. Moreover, her body is transparent, and she has gaps in her memory. As they struggle to figure out the mystery behind Hiyori's state, Kenji begins to realize his forgotten feelings and Yuki suffers with her secret. [From [url=http://en.wikipedia.org/wiki/Mizuiro]Wikipedia[/url]]

As the title implies, the game focuses on Mahjong and was released in celebration NekoNeko's 5th anniversary.

A Doujin title by Stage-nana of Kanon. Nayuki Minase meets a mysterious girl in the shopping district. Her name is Ayu Tsukimiya and shes looking for something precious, but doesn't quite know what it is. This is the story of the developing bond between the two.

Contains omake (bonus) material related to NekoNeko's earlier games.