Al/Relationships

Priscilla Barielle
Although he was bribed to be with her, Aldebaran later on realized that he really wanted to protect her and although he usually receives blows from Priscilla, he continues to accompany her.

Schult
Schult and Al both care about each other, since Aldebaran suffers a lot when Priscilla hurts him.

Rem and Ram
Al seems to be acquainted with Ram as he mistook Rem for her older sister during the third failed loop of Arc 3. Throughout their following short interaction, Al expressed his shock at realizing he was speaking with Ram's sister, indicating he only knew of her existence and not of Rem's. Soon after, he turned extremely hostile though managing to contain himself in mere seconds. After Rem and Subaru departed from Priscilla's manor, Al seemed to have gained somewhat of a grasp on the situation; a situation that made him want to vomit.

Arakiya
Al and Arakiya crossed paths roughly 7 years before the start of the main story, during the gladiator upbringing that took place on the gladiator island Al was situated at. Upon first meeting Al, Arakiya expressed her interest in his face, stating it "wasn't bad". The two were forced to form a short alliance in order to fight another gladiator by the name of Hornette, who was guarding the drawbridge which connected the island with the mainland and was preventing the Imperial Army from entering the island and subduing the uprising. After their fight, Al expressed his immense happiness for finally being able to save a beautiful silver haired girl, as he once already had the chance to do so, but failed.