Taking the same role as Kanade and Raki from the previous games, Akane can fight you up to three times, with her getting stronger between each battle. She is also accompanied by her loyal Antibody, Kukuro, and despite this battle being called an sparring match, it'll still cause you a Game Over if all your party members except your Reyvateil get killed, so be careful. You can start fighting her after seeing an scene at the Clustania Executive District, right after having defeated Richaryosha at the XP Shell and encountered Akane herself at Archia City. These battles are optional and thus, aren't required to beat the game, but you will gain some nice rewards if you win them. As a final note, you will have to leave the Executive District, return and fight five normal battles before Akane wil