Gakuen Heaven: Boy's Love Scramble is a boys' love media franchise originating from a Windows visual novel released in 2002 by Spray. The franchise expanded substantially in 2006 when an anime television series produced by Tokyo Kids aired for 13 episodes, following average student Keita Itou after he receives an unexpected invitation to the elite, all-male Bell Liberty Academy. The CCG listed in this archive carries a 2006 publication date and credits the publisher simply as Movie, which likely refers to a licensed merchandise producer associated with the anime release window. Cards would have drawn on the large cast of distinctive male characters at the center of the franchise. Detailed documentation of this specific card product is scarce, which is precisely the kind of gap this archive exists to acknowledge. The broader Gakuen Heaven franchise is well-documented on the Gakuen Heaven Wiki, but coverage of physical card merchandise from the 2006 anime wave is minimal in English-language sources.
Source: gakuen-heaven.fandom.com/wiki/Gakuen_Heaven:_Boy's_Love_Scramble!