Sona Sitri/Relationships

Rias Gremory
As childhood friends, Rias and Sona have a great deal of respect for each other, as well as a friendly rivalry. Sona cares for Rias a great deal and wishes the best for Rias. Rias told Sona about Issei confessing to her and now wishes to have a boyfriend.

Issei Hyoudou
Sona become observant of Issei upon hearing that his revival cost eight Pawn pieces. During Rias' first Rating Game against Riser, she was quick to be disturbed by Issei's Dress Break. Later on the series, Sona has grown to admire and respect Issei very much and is also jealous at the same time because Issei relieved Rias of many of her problems that she had but she could not do anything for her because of her position as a High-Class Devil and her family's rank in the upper society of Devils. She cares a great deal for Rias as her friend and wishes for Issei to give her a strong support because she is stubborn and willful but at the same time delicate. In Volume 11, she suggests Issei to call her by her first name whenever they are alone, but Issei couldn't and she gave a small laugh. Sona congratulated Issei on the recommendation for his promotion for Mid-Class Devil and wishes to give Rias as strong as support as possible. She also congratulated him on his growth after he defeated Sairaorg.

Akeno Himejima
Akeno and Sona are good friends in real life, calling each other by their first name when in private.

Genshirou Saji
Sona is strict with Saji and always scolds him when he is making a fool of himself. Saji is in love with her, and while she seems to genuinely care about him, she states that she sees him more as a brother and wouldn't lay a hand on him since other members of her peerage are in love with him.

Serafall Leviathan
Sona is often embarrassed by her sister's child-like personality and her overprotective nature. Despite so, she does genuinely care for her sister.