Bleu

Bleu is a member of the Gallia Knight Army, and brother to Jack and Jannette. He is capable of leaping great distances and performing impressive acrobatic moves. Just like his older brother Jack, Bleu is a capable fighter and strong with a sword. He's seen taking down two royal guards with one swipe.

After stealing the Founder's Round Mirror, Bleu handed it over to Joseph, King of Galia, still sour about his brother being arrested he is happy to fight Saito in order to allow his sister to capture Louise.

There is some speculation about his name, Jack referred to him as Bleu, but Jannette referred to him as Lulou.