紳士同盟† [Shinshi Dōmei Kurosu]

Tanemura Arina's Shinshi Dōmei Kurosu (also known as Gentlemen's Alliance Cross), published by Shueisha from 2005 to 2008, is a shojo romance that follows a young girl navigating the elite, secretive world of a prestigious academy's student council. Over its 11-issue run, the series blends Tanemura's signature ornate art style with a story of tangled friendships, forbidden love, and the pursuit of a mysterious "Gentlemen's Alliance." It stands as a classic example of mid-2000s shojo manga, beloved for its dramatic, character-driven twists and Tanemura's distinctive, detailed visual storytelling.