"Kaori is one of the main characters in the Japanese manga ""Stay Awake All Night"". She is a 19-year-old girl who is often seen wearing a cheerful smile on her face. Kaori is described as being outgoing and friendly, making friends easily wherever she goes.

Kaori is the love interest of the male lead, Hiroki, and their relationship is one of the central themes of the story. Despite their different backgrounds and personalities, they are drawn to each other and share a deep connection.

In the manga, Kaori is depicted as a talented musician, playing the bass guitar in a band along with Hiroki. Her passion for music is a major part of her character, and she often uses it as a way to express herself and connect with others.

Despite her cheerful demeanor, Kaori has a troubled past that is slowly revealed throughout the story. She comes from a broken family and has had to face many challenges in her life. However, she is determined to overcome her struggles and live life to the fullest.

Throughout the manga, Kaori's character undergoes significant development as she deals with her emotions and learns to face her fears. She is often depicted as a source of strength and support for Hiroki and the other characters, offering words of encouragement and comfort when needed.

Overall, Kaori is a complex and well-rounded character in ""Stay Awake All Night"". Her passion for music, kind-hearted nature, and personal struggles make her a compelling character to follow throughout the series."