The Olympic bronze medalist's victory gave Japan its first world title by a woman since Mao Asada won the last of her three titles in 2014.
The Olympic bronze medalist earned level fours on all of her spins and step sequence.
Kagiyama was nothing short of spectacular in his Grand Prix of Italy free skate to music from “Gladiator” en route to victory.
Anna Shcherbakova captured her first world title, while Elizaveta Tuktamysheva and Alexandra Trusova finished second and third, respectively. Kaori Sakamoto placed sixth overall and Rika Kihira...