Agito  

, アギト

The Ancient Belkan Unison Device, known as Agito, was rescued by Zest and Lutecia from rogue scientists who were experimenting on her. Despite having no memory of her past, Agito has sworn a rivalry with Reinforce II due to the fact that he possesses a "Meister" while she does not. Due to their initial encounter, Agito mistakenly believes that Vita is Rein's master. She refers to Lutecia as "Lulu" and Zest as "Boss." Unlike Zest, who has given no reason for Lutecia to mistrust Scaglietti, Agito has informed her that he only desires her so that he may conduct experiments on her. Signum was considered an ideal candidate for Agitos Lord, as he was a true Ancient Belkan Knight, and after Zests death, Agito accepted the union. When combined with Signum, their unison is fully synced, granting them increased appearance and power. In the epilogue, Agito continues to harbor a rivalry with Rein.