"Yume Miru Kusuri: A Drug That Makes You Dream" is a computer game in the visual novel genre. The game was released in Japan in 2005, developed by Rúf and published by Peach Princess.
The protagonist is a high school male named Kouhei Kagami, who lives a mundane life of daydreaming and occasional hallucinations. He begins an emotional adventure when he meets three troubled girls, and he is tasked with saving one of them throughout the story.
Visual novels differ from conventional video games because they are formatted as a series of graphics and role-playing interactions that read like a book. Many plot points are dependant on decisions made by the game player. The game contains adult content and is considered "eroge," meaning it is in the category of Japanese erotic video games.