 Team Dai-Gurren is initially distrustful of her but they allow her to join them when it becomes apparent that she was abandoned by her father, like many who came before her.Nia helps Simon come to terms with Kamina's death, and the rest of Team Dai-Gurren prompt him to take up the role as the team's leader, leading them and other teams of humans, who had captured other Gunmen and Gunmen fortresses, to Lordgenome's palace.As the palace itself turns out to be a gigantic Gunmen called the Teppelin and launches armies of other Gunmen, the human forces hold them off while Simon, Nia, and Rossiu pilot Gurren Lagann against Lordgenome, who fights them in a similar Gunmen called Lazengann.