The action takes place at a time when computers in the home were quite rare, and computer clubs were at their peak in popularity. The story tells about a boy, Alexander, who spent all his free time in one of these computer clubs, despite his parents’ prohibitions. Under the threat of severe reprisal, he makes a promise to give up his main hobby and immediately breaks it. The oath he took binds him to the world that he sees every day on the monitor screen. Alas, he swears by the most precious thing he has and now must undergo severe trials to correct his mistake. With his appearance in the new world, he disrupts the measured life of the city and gives rise to a chain of events that ultimately leads to war between countries that have lived in peace with each other for so long.