Aiji Yanagi is one of the main characters in the otome visual novel series Collar x Malice. As the calm and reliable leader of the former police team, Yanagi is known for his strong sense of justice and his protective nature toward his teammates and the protagonist. He excels in investigation and strategy, often taking charge during difficult situations. Throughout the story, Yanagi plays a central role in uncovering the mysteries behind the dangerous organization Adonis, while also developing a close bond with the heroine.