Naru, Keitaro, and Mutsumi have taken the entrance exam for Tokyo U yet again! However, before the results are announced, Keitaro disappears. Where did he go? Secretly concerned, Naru acts like she doesn’t care, but the pressureís too much. After getting a call from Seta saying that Keitaroís on the same tropical island heís on, Naru sets off to ìrescueî him. A new love? Strategically placed leaves!? A secret civilization! Mecha Tama Mark 3!! This Love Hina adventure is the biggest yet!