These are the allies who has been allied with the Sword of Logos thousands of years ago. Ever since of all previous different Sabers has interacted them and making them becomes of their allies.

The Guardians of Knights: They had been allies with the First Saber in the thousands of years ago. They are Brothers in Arms of the Swordsmen and now they're went to hiding and resting from their evil master they had betrayed them.

Lailah: Lailah has been known as Lady of Lake. She went to the journey with the previous Saber and seeing him as big brother she with him alongside with Velvet Crowe. The previous Saber give his sword to her and resting in Lake to test to see is worthy enough.

Zavied: Zavied has been allied of previous Saber. And seeing him as the good friend for that. 

Meliodas: The kindful and cheerful from the Demon Realm has betrayed and seal his own people. He was the best friend of previous Saber they're become brother in arm. Meliodas wondering the worlds around for the millennium.

Sebastian Michaelis: The mysterious butler has unknown origin. He is the loyalty butler and servant toward at Leon's family for the entire generations. Sebastian care toward at his master Leon.

Guardians Dragon: The Guardians Dragon has been keeping all the realm to maintained in balance. And seems to be know about Brave Dragon's true name.

(P.S Ignore Ignitus he not here anyway.)

Ryusoul Tribe: They are the tribe living in the Realm of Wonder World, they transformed known as Ryusoulger they're had been allied for the thousands of years ago.

Roselia: The Witch elder has been associate with the Sword of Logos. And she fell in love with Swordsman of Lion the previous Blades. After thousands of years ago.... She seems to have strained with Sword of Logos and have blood connection with Leon.

Tiki: She had been allied with second Saber user alongside with his foster brother Marth and their friends. She see Saber as big brother including Marth.

Myrrh: Myrrh is known to be shy dragon girl, she has see Ephaim as big brother and Luke as big brother too. Seeing Brave Dragon as the father figure he trained and taught her everything. She living in the Mirage Realm.

Nowi: Nowi is to known as enegertic cheerful girls. She has the sibling relationship with Saber's previous user Ryuga. Seeing him as the big brother and she is living in the Mirage Realm.

Charlemagne: He is the legendary dragon and old friend of Merlin, and Brave Dragon. He is the father of Archie and former member of Guardians of Dragons. He living in the Fire Realm for his retirement.

End info