A man obsessed with a female pop idol pleaded guilty Monday to stabbing her last May in Tokyo after she rejected gifts from him.

Tomohiro Iwazaki, 28, developed a desire to marry Mayu Tomita, a 21-year-old college student, after watching her shows, the prosecutors said in their opening statement at the Tachikawa branch of the Tokyo District Court.

Asked if what the prosecutors claimed was incorrect, Iwazaki, wearing a black suit and blue tie, simply said "no."