"Kiriko Kiyuna is a significant character in the manga ""Insects of the Night."" She is one of the main protagonists, and her character has an extensive impact on the story. Kiriko is a seventeen-year-old high school student who is incredibly intelligent, fierce, and has a strong sense of justice.

Kiriko is first introduced in the story as a high school student who is very diligent in her studies. She excels in almost all subjects and is well-liked by her teachers and classmates. However, she also has a secret side to her. Kiriko is part of a vigilante group, which aims to bring justice to the city's streets overrun by crime.

Kiriko is a complex character as she is not afraid to take risks and confront danger head-on. Throughout the story, she demonstrates her bravery and intelligence when the group is faced with challenging situations. Kiriko is also the love interest of the male protagonist, Kazuma.

Kiriko is shown to be a skilled fighter, and her knowledge of martial arts, combined with her intelligence, makes her an invaluable asset to the vigilante group. She is also shown to be very loyal to her friends and has a strong sense of honor. Therefore, when her friends are in trouble, Kiriko does not hesitate to put herself in harm's way to help them.

Kiriko's appearance in the manga is also noteworthy. She is depicted as a beautiful young woman with long black hair and bright blue eyes. Her physical appearance, combined with her intelligence and fierceness, makes her a formidable and memorable character in the story.

In conclusion, Kiriko Kiyuna is a significant character in the manga ""Insects of the Night."" Her intelligence, bravery, and fighting skills make her an indispensable member of the vigilante group, and her impact on the story is significant. She is dynamic and complex, and her character is sure to leave a lasting impression on readers."