Surrounded by Welter soldiers, Rain kisses Mirei to transform into the Disarmment Buster Arm that forces Exters out of their weapon states, while Lady J uses her skills as a motorcycle to fight back Charlotte and Kasumi. Just then, Akira Hiiragi, Welter's governor and allegedly the only male on Mermaid, arrives to prove Mirei's innocence, having encountered Meifon earlier, and recalls the troops, much to Charlotte's ire. After Lady Lady take their leave, Mamori starts taking an interest in Akira, much to Mirei's dismay, while Akira tells Kasumi about his interest in Lady Lady, who function differently from the usual Liberator partnership. Later that night, Mamori follows a vision of Akira into the jungle, unaware that it is an illusion set by one of Charlotte's followers to try and put her in Arm form to kidnap her. However, Mirei arrives in the nick of time, managing to overcome her opponent's mental attacks and defeat her.

Mirei, Mamori, and Kasumi come across a girl named Nimi Minimi who, after running away from the castle when Charlotte tried to force her and her girlfriend Noe Oya into separate partnerships, somehow wound up in a giant form. Nimi is brought to Atelier Torino, where she manages to get along with everyone despite her gigantic form. The next day, as Nimi suddenly grows even larger, Mamori encourages her to go and see Noe and tell her how she feels. This naturally causes panic as she approaches the castle, with Kasumi's attempts to stop her only causing her to grow larger still. Before Charlotte can attack, Mirei and Mamori break Noe out of detention so that she can reach Nimi, allowing her to return to normal size. Akira then explains that the growth was a cause of Nimi's powers, which had simply taken a while to activate, allowing Nimi and Noe to remain partners with each other.