Shuuji Kiritani is a fictional character from the popular Japanese manga and anime series Nana, created by Ai Yazawa. He is known for his charming personality and complex relationships, particularly with the character Nana Osaki. Shuuji is a talented musician and plays a significant role in the story's exploration of love, friendship, and ambition. In the series, Shuuji's character development is central to the plot, as he navigates the challenges of the music industry and personal struggles. His interactions with other characters, including Ren Honjo and Nana Komatsu, highlight themes of loyalty and the pursuit of dreams.