Kōsaki Nanami is a fictional character from the popular anime and manga series Nisekoi, created by Naoshi Komi. She is known for her cheerful personality and is one of the main love interests in the story. Nanami is a high school student who works part-time at a cafe and is recognized for her distinctive long, light blue hair and bright smile. In the series, Nanami is depicted as a kind and supportive friend, often helping others with their problems. Her character is involved in a love triangle with Raku Ichijou and Chitoge Kirisaki, adding complexity to the romantic plot. Nanami's character development and interactions contribute significantly to the overall narrative of Nisekoi.