Pervushkina ayaa markii ugu horreysay ka ciyaartay heer caalami xilli ciyaareedkii 2014-15, iyada oo kaalinta 5-aad ka gashay taxanaha 2014-15 Junior Grand Prix (JGP) ee Japan. Horyaalka qaranka Ruushka
, waxay ku dhameysatay kaalinta 13-aad heerka sare iyo 10-aad heerka hoose. Dhamaadkii xilli ciyaareedkii, Pervushkina waxay ka tagtay tababarayaasheeda mudada dheer, Irina Baranova iyo Ilia Korzhov, si ay ula tababarto Evgeni Rukavicin ee Saint Petersburg.