Lyrical Toy Box (リリカルおもちゃ箱 Ririkaru Omocha Hako) is a merchandise CD, released for Triangle Heart 3 on published::June 29, 2001. It contains a large amount of fan material, including a number of visual novel-like stories called "mini-scenarios". One of them, entitled "Magical Girl Lyrical Nanoha", cast Nanoha Takamachi (a minor character in the TH3 canon) as a magical girl and served as a prototype for the Magical Girl Lyrical Nanoha anime series. The following article describes only said mini-scenario.