Shusui is the Chief lady-in-waiting in the imperial household. Ran Ryuuren noticed once while having tea with Shuurei that she is very skilled for a lady-in-waiting (Kourin had accidentally dropped the tea pot and Shusui had caught it). She is part of the Black Wolf clan.She secretly loves and admires Shouka Kou,the father of Shuurei Kou,librarian by day and the leader of the wolfs's clan ,Black Wolf himself. He retired from being the leader after he felt in love with Shuurei's mother,a noble woman who Shouka was supposed to kill,because of a mission he was given. (Source:HotaruKara)
Works in the persecution department. From the middle-high class, he proposes to Shuurei under his father's orders despite his lack of personal interest in her. When he first appears, he is bearing many tanuki-themed accessories including a golden statue, causing Seiran to nickname him "Tan-tan." He does not like putting effort into anything and thus is both intrigued and annoyed by Shuurei's continual determination to do her best. However, Tan-tan can clearly perceive a situation's complete context or a person's true character, making him a valuable asset to his department, and he tries to lessen Shuurei's naiveté by showing her the evils of the world. Seiran considers Tan-tan to be a practical influence on Shurei and is unusually willing to engage him in conversation. Nevertheless, Seiran also likes to pelt Suou with bamboo shoots and make him pay for random purchases, calling him "Saifu #2" (wallet #2, after Ensei as #1). Tan-tan is roped into the counterfeit paintings investigation by Shurei and ends up arresting his father, who was used in a larger plot. He saves Shurei from being fired when Riku Seiga steals her research proposal. Since then, Tan-tan has followed Shurei and re-entered the persecution department as her assistant.
He is a Lord of a forest. The Youkais that live in the forest often says that he's foolish for befriending humans because he liked them.
Tama was found as an egg in Episode 4. Tama means eggy.
She is a friend of Sawako's from back when they were in high school, and they were both in the light music club together as part of the band Death Devil. She and Sawako used to try to outdo each other on the guitar. Her stage name is Christina.
Megumi was the president of the student council before Nodoka succeeds her in her third year, and she is also the president of Mio's fan club. She stalks Mio during her last few days in high school because she wanted to see Mio one more time. The band offers her a song as a graduation gift. She can be seen in episodes seven and eleven of the anime. (Source: Wikipedia)