[Bousou Tenshi-UPsideDOWN (Sakatani Shinnosuke)] Koi no Renritsu Houteishiki (Yu-Gi-Oh! GX) | [暴走天使-UPsideDOWN (逆谷伸之助)] 恋の連立方程式 (遊☆戯☆王GX) | Koi no Renritsu Houteishiki