Keigo Higashino's " Unrequited Love " was a well-received romance novel. It was about the love story between an innocent and kind girl and a selfish and cold man. This novel was enthusiastically sought after by readers and was hailed as one of Keigo Higashino's representative works. The advantage of this novel is that its plot is compact, the story is fascinating, and the plot is full of suspense and surprises. At the same time, the novel was also full of deep human thinking and helplessness towards emotions, which resonated with the readers in the process of reading. In addition, Keigo Higashino's " Unrequited Love " also received high literary reviews. The critics thought that the novel was concise in language, compact in plot, and rigorous in structure. It was an excellent novel. The readers also felt that the novel provided readers with a reading feast full of imagination and emotional experience through its unique narrative method and deep thinking. In general, Keigo Higashino's " Unrequited Love " was an excellent romance novel. The plot was compact, full of suspense and surprise, and the language was concise and profound. It was well received.