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Maxim Derevyanko, who a year ago dreamed of a magic wand and now founded a computer literacy school for grandparents, suddenly finds himself in the centre of attention of the whole school. Launch a virus into the history teacher's computer? No problem! But it turns out that the problems are just beginning! The best friend supports a sworn enemy, the tax office comes to the young businessman, and the profits from lessons with grandmothers have to be spent on organising a million-dollar battle! And how do you do your homework, run an Instagram account and a YouTube channel at the same time?

Rapidly open the book to find out why the school term ends so spectacularly that even students are envious, as well as what Maxim will write in his entrepreneur's diary.