Svyatoslav Romanov is not a professional military man, not an experienced fencer, but an athlete fed up with life. He had everything he could only dream of. Money, fame, career, love of women... And how could he ever have thought that in an instant he would be transported into the body of a teenager, finding himself on the border of the Wild Field. He will have to survive in a new world full of wars and misfortunes, where compassion is synonymous with weakness and only strength decides everything. Rus', thirteenth century, time of change... The time when the old world collapsed and a new one began to emerge on its fragments...