Rai (霊, rei, "spirit") is a fictional superhero that appeared in books published by Valiant Comics. Rai was the first original hero created by Valiant and had its beginning as a flipbook back-up feature in Magnus, Robot Fighter #5 (October 1991), in Rai #1 (October 1991). The popularity of the flipbook back-up story later led to an ongoing series. A new Rai ongoing series was launched in April 2014, selling out of its initial print run.