The Debut of a New Song! Gian's The Greatest?

To the surprise of many, Gian has found a supporter of his singing, but after he extends his concert for her, she disappears. Several days later, Doraemon and Nobita run an errand when they chance upon the same girl, Takako, during her physical education class at a middle school she attends. She decides to form a fan club for Gian, but on his concert the next day she doesn't show up, so he cancels his concert.

Gian orders Nobita to find out about Takako. He and Doraemon go there and learn she has been selected by the school to participate in the high jump competition to be held next week. They also learn that she was a contestant in the previous edition, but she lost as she wasn't confident enough. Gian follows them and makes a promise - he'll contest in the Music Battle Station radio show with a new song, and she'll break her own record in the competition.