Love and Little Nuisances

One ridiculous accident – and first-graders Tanya and Mark become sworn enemies. For ten long years, they invent new ways to annoy each other, until at the beginning of the tenth grade, Tanya decides to put an end to it all. Will Mark agree to the girl's suggestion? Is it possible to refuse the usual nuisances? And what to do if mutual dislike turns into something entirely different?..