A female imperial guard of the Kuh�in family, Lin is the newest bodyguard of Murasaki, replacing her former guard, Kiba, due to female convenience. Armed with a pair of katana, her fighting skills are formidable, though not at the level of Yayoi Inuzuka. Although she disapproves of Shinkur�, nevertheless, she accepts him as Murasaki's companion, and frowns heavily on all the attention Shinkur� receives from other girls (even if he is unaware of it). Lin takes Murasaki's wishes literally, including attempting to get Shinkur� and Murasaki wedded to each other, despite not having permission from either party (or their families, for that matter). Under Murasaki's care, Lin is slowly learning about normal life, albeit with some difficulty. Lin is a completely different character in the anime TV series. She has no interest in the Kuh�in family matters and only works for them because she desires strong opponents to defeat.
She first introduced herself as Sirzechs' maid. She was the one who relayed the Gremory family's request to have Rias participate in a Rating game against Raiser. She is in truth Sirzechs's Queen, both in the Evil Pieces and as the Maou's wife.
The Student Council Accountant (treasurer). She is also a ninja. Yuka appears to be carefree most of the time. However, she is very cunning, mostly encouraging activities of the Maken-ki that involve some kind of other work that needs to be done. The most obvious of these actions is the "match" between Venus and Maken-ki, where the players use broomsticks and soap while playing in the pool. She is close friends with Furan and likes to tease her. Yuka is also the younger sister of Takeru's homeroom teacher Tomiko Amado. (Source: Wikipedia)
President of Student Council
Tsugumi is a hitwoman who was raised and trained by Claude of the Beehive Gangsters.Tsugumi is originally introduced as a guy who transfers to Chitoge's class, and has orders to protect her from Raku, whom she thinks forced Chitoge into the relationship. She and Chitoge are childhood friends; she tries to keep a ten year old promise of becoming strong to protect Chitoge. However, after Raku treats her nicely, she begins to develop some feelings for him, even though she is too stubborn and embarrassed to admit it. In America, her assassin code name is "Black Tiger," who had a rivalry with "White Fang." She does well academically, having ranked next to Chitoge on a yearly exam. Later when she learns that Chitoge and Raku had been having a fake relationship from the start for the reason of only to stop their families from fighting. She investigates their individual feelings for each other to know if she has a chance. She comes to the conclusion to give up in order for Chitoge to be happy and one day when alone with Raku in the classroom, she places her hands over his ears and confesses her love so that he doesn't hear it. She later helps Chitoge and Raku come to terms to their mutual feelings. In the epilogue, she becomes Chitoge's exclusive model. (Source: Wikipedia)
Miiru is a new freshman at the college Taka, Keisuke, and Tetsuya attend. She decides to join Keisuke's Ancient Chinese Mythology Club, where she sees and reads some of the "Shi Jin Ten Chi Sho". She believes Keisuke's story about another world inside the book, where his little sister was pulled in and became the Suzaku No Miko. Miiru, however, is the second of the Shitennou working for Tenkou, and has the ability to use blood to control or harm people. She can plant parasites in the blood, or make dolls out of blood and use them as tools for manipulating a person's actions. Miiru is the older sister of Ren, and like her younger brother, was granted her powers by Tenkou and can travel between the two worlds. From linkFushigi Yuugi - The Fire of Suzaku's Wings