The World's First Love was a Japanese manga and novel about the love story between teenage boys and girls. The answer to the question of which pair was the sweet couple varied from person to person because everyone had a different definition of "sweet". However, according to the feedback and comments of the readers, one of the sweetest couples in " The World's First Love " was Hatsune and Zoko. Hatsune and Zouzi were a couple of protagonists in a novel. There was a strong chemical reaction and emotional interaction between the two. They showed many sweet moments in the novel, such as Hatsune cooking for Zoko, Zoko tidying up the room for Hatsune, and so on. These details were very touching. In addition, Chuyin and Zouzi had a very deep emotional foundation. They supported each other and supported each other through many difficult times. This was also one of the important reasons why they could be together. In general, Hatsune and Zoko were a very sweet couple. Their emotions and interactions were also very touching, so they were deeply loved by many readers.