Claim: The Monthly Shōnen Rival released several series such as Aoi-sama ga Ikasete Ageru by Kiki Suihei and Blazer Drive by Seishi Kishimoto.
Evidence: Monthly Shōnen Rival (Japanese: 月刊少年ライバル, Hepburn: Gekkan Shounen Raibaru) was a Japanese monthly shōnen manga magazine by Kodansha that ran from April 4, 2008 to June 4, 2014.  Aoi-sama ga Ikasete Ageru
葵さまがイかせてアゲル Kiki Suihei 2008.05 2009.09 Blazer Drive
ブレイザードライブ (Bureizā Doraibu) Seishi Kishimoto 2008.05 2011.12 
Seishi Kishimoto (岸本 聖史, Kishimoto Seishi, born November 8, 1974) is a Japanese manga artist. A year after 666 Satan ended, Kishimoto launched Blazer Drive in the debut issue of Kodansha's Monthly Shōnen Rival, preceded by a prequel one-shot, Tribal, in the final issue of Comic BomBom; Blazer Drive ran through 2010 and received a video game tie-in.