is one of the Main Characters of Too Many Losing Heroines series as well as one of the titular Losing Heroines. She's a First Year Student of Class 1-C of Tsuwabuki High School and also a member of the literature club. She has romantic feelings for her Childhood Friend and Classmate Sosuke Hakamada and best friend of his girlfriend Karen Himemiya.
Yanami is teenage girl of average height, she has medium length blue hair, fair skin and a bust second only to her friend Karen Himemiya. 