Margarita Shaburova was very concerned about the life and health of her Japanese language teacher Yuri Kuzmin and therefore turned to professional bodyguard Evgenia Okhotnikova. The teacher-sensei had already been sent threatening messages in Japanese several times, both times during lessons. For the first time, the courier delivered to Kuzmin an ancient mask of the Japanese god of the underworld, Emma. The next day - a postcard with a dull autumn landscape and an indication of a Japanese cemetery. Both messages touched on the topic of death and the afterlife, and Margarita was very worried that the attackers not only wanted to intimidate the teacher, but could also seriously harm him...