Ouma Kurogane/Relationships

Ikki Kurogane
Ikki is Ouma's younger brother. Ouma though doesn't care much about Ikki, believing that Ikki isn't truly strong as he simply uses dirty tricks to win. Ouma only cares about him as a possible obstacle for Stella, fearing that he might slow Stella's progress, even once trying to kill him. Ouma however did later admit that he may have been a little wrong about Ikki. Ikki on the other hand, somewhat admired Ouma in his childhood, for his dedication and ability to carry the wishes of everyone on his back. In the present however, Ikki has a far more neutral look at Ouma, though still believes him to be strong.

Itsuki Kurogane
Itsuki is Ouma's father. Itsuki and Ouma seem to have a rather neutral relationship, as Ouma left home at a young age. Itsuki though shows some trust in Ouma, having asked him to join Akatsuki, and despite having left home, Ouma obeyed his father's orders, indicating a level of loyalty to him.

Shizuku Kurogane
Ouma's younger sister. Shizuku and Ouma also have a rather neutral relationship, though Shizuku still recognizes his strength.

Stella Vermillion
Ouma holds Stella in a high regard, believing that she is the opponent he has been searching for. Stella was in fact Ouma's main reason for joining Akatsuki, and even attacked Ikki, to make sure Stella could fight at her full potential. Stella recognizes Ouma and his strength, facing him being the main reason for her training with Nene. Stella however isn't as obsessed of Ouma as he is of her.

Tohka Todo
Ouma and Tohka faced each other during Akatsuki's assault on Hagun Academy. Tohka was shocked by Ouma's utter strength, with Ouma being unimpressed by Tohka.

Reisen Hiraga
Reisen is the leader of Akatsuki, with Ouma following his orders. Ouma however is annoyed by his antics, and constant talking.

Ouma has a mostly neutral relationship with the other Akatsuki members, not caring much about them.

Yudai Moroboshi
Yudai and Ouma were rivals in their youth, with Yudai respecting Ouma even today. Yudai wishes to face him again, not wanting to be called the Seven Stars Sword King, as Ouma didn't participate in the Festival he won. Ouma though doesn't seem to care much about Yudai, though still recognizing him as a somewhat powerful opponent.

Renji Kaga
Ouma and Renji were also rivals in their youth, with Renji still wishing to face Ouma again. Ouma however doesn't think much of him.