Nikoru Yamana

Nikoru Yamana (山名笑琉, Yamana Nikoru) is a character in the Keiken Zumi series. She is the best friend of Runa Shirakawa.

Nikoru is a cynical and judgmental girl, specifically towards men. This goes as far as refusing to trust any guy who dates Runa. Her distrust often leads to Nikoru giving men she dislikes, a stern death glare. When she is with her friends she is shown to be a nice and kind person. Nikoru is deeply protective particularly towards Runa, whom she wants to protect from getting hurt, although despite this protective nature, she does want what's best for her closest friend

Nikoru has light-colored dyed hair that is lighter than Runa's, a necklace on the opening of her chest, piercings in her ears, pink nails, and her fashion wear is that of a gal but she also has sharp eyes that give her the vibe of a Yankee (Delinquent).