Kyō and Kyō
is a pair of twin sisters who are the respective Student Council President and Vice President of Ayame's school. Their names sound identical but spelled with different kanji; the elder twin is named with the kanji in 'bellflower' while the younger twin is named with the kanji for 'mirror'. Together, they form a fearsome bento brawling combo known as Orthrus, using shopping baskets to overwhelm their opponents with darkness and beat them so badly that they don't remember who attacked them. Before the start of the story, they were inspired to become bento brawlers after witnessing one at such a young age and became one of the strongest bento brawlers until a manipulative brawler known as the Club of Hercules made a deal with the other local wolves to simply let them pass by, thus taking the fun out of the brawls. Due to this, they lost all desire to continue until three years later, after they try to get a look of Sen in the hospital, when it was Yō who was hospitalized, not Sen.