On A Gran

Nobita finds his old teddy bear among the trash after his mother partially cleaned up their shed and tells her not to throw it away. The stuffed animal is a precious gift from his beloved grandmother. Reminiscing about her makes Nobita ask Doraemon to take him back to when he was still three years old and his grandma was still alive. [edit]

One day after school, first-year high school student Yomogi Asanaka comes across a starving man under a bridge. Introducing himself as Gauma, the strange drifter informs Yomogi that he is a "kaiju user," a person who deals with the "kaiju"—monsters who bring harm to the city and its citizens. The following evening, Yomogi runs into Gauma and his classmate Yume Minami. Simultaneously, a kaiju appears in a populated area of the city. Due to Gauma's lack of experience controlling the kaiju, he brings out a mysterious object from a glowing pouch, summoning a giant robot known as Dynazenon. Requiring the cooperation of four people, the mecha drags Gauma, Yomogi, Minami, and Koyomi Yamanaka—an unemployed man who was wandering on the street—into its cockpit. Their encounter with the kaiju marks the beginning of their entanglement with kaiju eugenicists—kaiju users who manipulate kaiju with ill intent—and their efforts toward bringing out the full potential of Dynazenon.

This film tells the story of Hu Guohua, who was framed and set up in a gambling game and lost all his family property. He was so stubborn that he dug his own ancestral grave. When there was no hope in his life, he happened to meet Sun Guofu of Jinmen, and he began to wake up with his advice. Although he was eventually tricked by fate and loved forever, he learned the hard lesson and transformed from a naughty young man into a gold ranger.