Knight of the Ice Series by Yayoi Ogawa

A KNIGHT ON ICEChitose is a career woman, with a job at a magazine and serious aspirations.. moreA KNIGHT ON ICEChitose is a career woman, with a job at a magazine and serious aspirations...except her childhood friend is an international figure skating star who won't stop distracting her! On the ice, Kokoro Kijinami is a flawless, gallant knight, winning trophies and hearts alike, but behind his glittery costumes and breathtaking spins lies a secret: He's actually a hopeless romantic otaku who can only land his quad jumps when Chitose is on hand to recite a spell from his favorite magical girl anime! So when a business trip takes her away from Kokoro's biggest competition yet, what will happen without Chitose there to work her magic? less

After one of Kokoro's fans spots him together with Chitose, rumors begin spreading over what kind of relationship the two could possibly have - and that Chitose is the cause of Kokoro's slump! To keep the rumors at bay, Kokoro's manager, Moriyama, comes up with a plan to keep Chitose close without raising fans' suspicions - by tossing Chitose straight into the public limelight as Kokoro's new personal trainer! But as Kokoro's career reaches a turning point, what will it mean for Chitose's?