Log Horizon: Entaku Houkai

Synopsis

While Akatsuki, Lelia and Litka keep Ereinus busy, Minori and the others regroup and resume their attack, eventually defeating the Genius together after discovering his weak point. With Ereinus defeated, the alternate space is lifted and all players are liberated. As the Adventurers celebrate their victory, Lelia and Litka decide to stay in Akiba and join Log Horizon. Later at night, Minori confesses her feelings for Shiroe, who reveals that he likes someone else and is heartbroken. Minori is consoled by her friends. Sometime later, Shiroe decides that his next step is to travel to Minami and Regan offers himself to accompany him.

(Source: Wikipedia)