Mishina/Galliamov placed seventh at the 2018 Russian Championships and took silver at the junior event. In March 2018, they won bronze at the 2018 World Junior Championships in Sofia, Bulgaria. They were part of a Russian sweep of the pairs' podium, along with their training partners Polina Kostiukovich / Dmitrii Ialin (silver) and Daria Pavliuchenko / Denis Khodykin (gold).