Sister's Dream, also known by its original name Art de Reve, is an English Yume Nikki fangame where you explore the deep dreams of a girl named Guretsuki.

Guretsuki is a typical 19 year-old hikikomori girl who doesn't want to leave her room. Throughout the dream world are various effects that'll allow you to trigger certain events, or make exploring your dreams a lot easier. Be careful while exploring, however, for the deeper you go, the darker your dreams get...