Aries Chaldea/Relationships

Arbitrator
Maris Stella - Aries is one of the few Arbitrator to open up to her, they are both friendly and love to tease each other. They are in good terms, having the only Arbitrator to chat with, due to Aries silence and a quite person. In Heaven she enjoys being Maris, and doesn't mind her jokes. In fact she finds them lovely, such as when Maris said that she could be the mother of her.

Faunaria Road - She is in good terms with Aries as well. Due to Aries solitude, Faunaria tries to cheer her up along with Maris, seemingly teasing and jest with each other they are in good and friendly terms among all the Arbitrators. In Heaven, Faunaria along with Maris enjoy being together and have fun. Faunaria views Aries as an irreplaceable friend whom she doesn't to lose ever. Aries even prioritized Faunaria safety by the Goddess of Darkness over Liese, who is originally her best friend. This is due to their strong connection together, as she wished for Arata to protect her.

Trinity Seven
Lieselotte Sherlock - Prior to become an Arbitrator and in school, both of them have the same Archive and the same abilities, at first they were both rivals but after some time they both became best friends, Aries considers her to be an important person in her life. Uniquely Lieselotte abilities much surpasses Aries, yet she wasn't chosen as an Arbitrator. After Lieselotte left, Aries felt lonely and had a huge impact on her life. In the same manner Liese trust Aries, and even in the end she left her the task of handling the Acedia archive in α universe, since she is the only one who can connect space and time other than her. Aries then decided even after they are separated from one another she promised to find her best friend no matter what path she takes.

Royal Biblia Academy
Selina Sherlock - Aries knows that Selina is Lieselotte sister, and the one who can access Melancholy Archive. After Aries shown what will happen in the future using her time abilities, Selina immediately considers helping her with her sister, since they both have the same abilities to manipulate time. As well as training Selina to become an Arbitrator Candidate.

Arata Kasuga - In the original world, Arata doesn't know her. Despite they met before in β world. When she saw Arata up close, when he came to the bath to check on all the commotion. Aries cries, shedding tears before teleporting away. He then wonders why she was crying. This is because her feelings towards him in the original world as well, which she does remember. When they were heavens world, she told him about the heavenly world, and that the Arbitrators will cooperate with his faction. She as well introduced herself to him.