I Found a Tsuchinoko!

After Doraemon warns Nobita that Gian will be the one who would discover the Tsuchinoko and gain fame for that, they both travel to the future to bring one Tsuchinoko with them and show off to their friends. But while they tell their friends upon their discovery, the Tsuchinoko sneaks out from Nobita's house and on its way to Gian, who finds it and immediately makes a name for himself as a result.