Pure Romance and The World's First Love were both Japanese light novels and manga works that mainly told the love stories between young girls. Although their story backgrounds and character settings were different, they had some connections in the plot and character development. Both novels were about romance, love, friendship, and so on. In the innocent romance story, the main character Misaki and her good friends went through many hardships in high school, but they eventually overcame them and got together. The protagonist of the world's first love, Hanayo Koizumi, was an introverted teenager who was not good at communicating with others. However, after he met the heroine, Ayano, he gradually opened his heart and his relationship with Ayano gradually warmed up. The character settings of the two novels were also different. The main characters in pure romance stories all had gentle, kind personalities and had deep emotional experiences. The main characters in the world's first love were more complicated. Some characters were eccentric and some characters had unusual experiences, but the feelings between them were equally sincere. Although the storyline and character settings were different, they were both widely welcomed in Japan and won the love of many readers.