|Date of Birth||February 5th (Aquarius)|
|Occupation||Head of the Tachibana Lineage|
|Goal||Have Marika marry and follow her orders(former)|
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Chika Tachibana was born into a family with an old, widely-known lineage. She is currently the head of this lineage and is planning to have Marika become the next head. She is very frail and weak and doesn't usually stay around people. Because of this, Marika and her mother did not speak to each other until Marika was about 7 years old.
When Marika was a child, she was raised strictly but after meeting Raku, Marika and her father requested to have Marika attend the same school as Raku. She agreed but made a compromise with her. If Marika were to ever become so sick that she couldn't attend school or have Raku ultimately reject her offer of marriage, she would immediately be sent home to Kyushu. If these conditions were broken Marika must always obey her orders and be forced to marry the groom she chose.
Chika's personality is very cold, cruel and emotionless. She is shown to not care about about Marika at all and only uses her to extend the family lineage. When Marika made a gift for her mother and gave it to her, Marika's mother ripped it in front of her daughter's own eyes.
Her personality has caused Marika and Mikage to hate her which is the reason why Marika calls her a long-living beast and the old hag monster.
After Marika returns home, Raku tries persuading her to call off the wedding. She asks several times why she should follow his request and why Marika's happiness or treatment is important. Before Raku is taken away by Honda, he asks what she thinks about Marika. She replies saying: "How disgusting. Do you want me to say I love her or something...?"
Chika's appearance is very similar to own daughter Marika. She sports dark, short hair that reaches around her neck. Her eyes are bit narrow with her pupils showing no depth. She is rarely seen showing an expression other than her straight face. She wears a large traditional kimono, decorated with different colored and patterned fabrics, that cover most of body.
Her looks make her seem very young for her age which causes Raku to mistaken her as Marika's sister when they first meet.