Residents of Yuragi-sou
Fuyuz
Chisaki Miyazaki
A classmate of Fuyuzora Kogarashi and a fellow rival to Karura. They started off as enemies during the Hiougi Estate Arc, but they are now on better terms afterwards. Initially, Karura didn't see Chisaki (along with Yuuna and Hibari) as a major threat in her pursuit for Kogarashi but still keeps tabs on her. It wasn't until the Water Gun battle Game, that she begun to see Chisaki as a true love rival, claiming her as an enemy. Although she calls Chisaki her enemy, the two don't mind each other's company.
Oboro
Hiougi vs Oboro
Among all the Yuragi girls, she sees the Dragon Sword to be the most dangerous of her love rivals. Hiougi is jealous on how forward and honest Oboro is to Kogarashi. Oboro also sees Karura as a dangerous individual because of their initial encounter and their love for Kogarashi. This makes Oboro the only one who Karura shows open hostility towards when it comes to Kogarashi. As a result, they fiercely compete with each other.
Hiougi Estate
Karura and Matora.
Mikogami Matora
A nue who is Karura's guardian and childhood friend. Matora's passion for a good fight can sometimes get on Karura's nerves, but the two are always willing to help one another in anyway. Before Karura's feelings were known by everyone, Matora was originally the only one who knew Karura's feelings for Kogarashi. Matora is supportive of Karura's feelings for Kogarashi that she's willing to do perverted things with him in order to make Karura more honest and forward.
Suzutsuki
Others
Ouga Makyouin
After learning that Ouga was Kogarashi's first love, she immediately saw Ouga as dangerous individual in not just battle prowess but also in love. When Ouga attempts to take Yuuna's life, Karura proved to be a major help by not only using her teleportation to save Yuuna, but also using her forces's resources to power up Nonko to fight Ouga on equal footing, and ordering Suzutsuki to assist in Yuuna's escape.