Chitoge Kirisaki was originally living with her father in the United States until she transferred to another school in Japan - where she is now currently residing in. With her father being the leader of the famous Bee Hive Gang, it has effectively caused multiple problems for Chitoge during her childhood as she cannot make friends very easily due to being under constant watch by her bodyguard, Claude. However, when she was young, she met and befriended a hitwoman in-training, Tsugumi, who to the current day, is still friends with. Chitoge also seems to have a few problems with her mother, who has very high expectations for her, making Chitoge somewhat a perfectionist: she excels in both sports and academics.

    At some point during her childhood, Chitoge had made a promise to marry another boy and has a key to that boy's pendant as proof of their promise, ensuring that when they meet again, they can unlock the pendant and marry each other. In addition to this, she also has a diary that depicts her memories of the boy she met from that time; unfortunately, neither his name nor his appearance are mentioned in it.

    Chitoge is very smart and completely fluent in both English and Japanese despite growing up in America, being half-Japanese. She is somewhat forgetful, aggressive and quick to attack someone who gets on her nerves. However, once someone gets to know her better, she becomes very talkative and nice. Similar to Raku, Chitoge is the type to go out of her way to help someone. For example, when Raku lost his pendant once again from the chain being broken, Chitoge had secretly gotten the Beehive gang to help fix it for him and gave it back later that night.

    Throughout the series, it is noted that she is a very bad cook due to the fact that she never measures ingredients and adds random things to the dish that she thinks will make the dish taste better. She is also very athletic as she can easily jump over the school's walls and swim 25 meters in a couple of seconds. In Chapter 106, when Chitoge had lost her ribbon, she becomes very emotional and sad, wanting to find the ribbon very badly. Unlike her usual self, when Marika insulted her for caring so much about a ribbon, she cried innocently, scaring the girl into speaking in her accent and helping in finding the ribbon. Raku also noted that she felt more womanly as Chitoge was meek and quite happy when he tried to buy a replacement ribbon for her and when she hugged him for finding her actual ribbon, but all in all, prefers her usual self better.

    Ever since she was a child she has had a hard time making friends as they were all afraid of her gangster family. As a result she had a cold demeanor toward people at the start of the series due to Claude's over protectiveness. This led her to create notebooks filled with information on classmates in an attempt to make friends. She is also afraid of the dark as she had fallen into a washing machine and got stuck in it for hours before she was saved.

from Wikia