If Time Travels, There Will Be Worries, a Debut Novel for a Second-Year Junior High School Girl

First, it is best not to meet each other, so that we can not know each other. The second is that it is best not to know each other, so that you can not miss each other. Third, it is best not to miss each other, so that you can stop falling in love. Fourth, it's best not to fall in love, that's all. . . . . . No distinction. . . . .