A lively fangirl who burns like red flames, Jiang Huaidi. The yellow and gentle otaku, Annabelle. The eldest lady who is as clean and clear as blue, Kang Jung Mi. They are junior high school girls from China, the United States, and South Korea who have different nationalities, different family backgrounds, different personalities, and different thoughts, but they also like to read the "Prince of Tennis" comics. One day, they disappeared in different ways, at different times and in different places, but they also arrived in the world of "Prince of Tennis". Everything for them seems to be starting over, with earth-shaking changes, just because there is a person who secretly controls the time-travelers who wants them to be happy. Therefore, they had to get used to a life that was completely different from reality...