Stand by Me Doraemon

Nobita endures failing grades and daily bullying from Suneo and Gian. A surprising visitor arrives from the 22nd century—Sewashi—accompanied by Doraemon, revealing that Nobita's present-day laziness could doom his future. Sewashi explains Doraemon's mission to stay in the past to help him change his fate.

Doraemon warns Nobita not to lean on future gadgets as a shortcut to success. He cautions that genuine growth comes from effort, resilience, and learning from mistakes. Nobita contemplates shortcuts despite the warning.

Fueled by the promise of easier grades and social clout, Nobita tests various gadgets to improve himself and impress Shizuka. He begins to rely on tech to study and maneuver through school life. The gadgets spark small wins but plant seeds of dependency.

Shizuka Minamoto is introduced as the kind, capable classmate who becomes Nobita's coveted crush. Nobita's attention shifts toward winning her friendship and affection, while Dekisugi remains the top student rival.

Nobita asks Dekisugi for study help to catch up academically, hoping to draw Shizuka's notice. The trio—Nobita, Dekisugi, and Shizuka—become a quiet, tense dynamic under the surface. Nobita compares himself to a perfect student while fearing failure.

Behind the scenes, Gian's mother and Nobita's mother Tamako Nobi pressure family life and Nobita's social circle. The home environment underscores the stakes of Nobita's experiments with social standing. Nobita's resolve is tested by family expectations.

A misguided attempt to win Shizuka's affection triggers an embarrassing misunderstanding that leaves her upset. Shizuka overhears Gian and Suneo discussing Nobita's fragile self-esteem and recent failures, which makes her worry about Nobita's wellbeing. She resists a protective potion device from Doraemon, signaling her growing concern for him.

Doraemon explains that Shizuka's eventual marriage to Nobita could be possible if Nobita changes. Nobita imagines an older version of himself guiding Shizuka through a perilous moment in a blizzard, testing whether she would still marry him if his future is shaped differently. The moment solidifies that Shizuka would marry Nobita under the right conditions and that his decisions matter.

With this realization, Nobita resolves to change his ways and strive to make Shizuka happy, rather than rely on gadgets. Doraemon's presence remains delicate as they consider how long he can stay within the timeline, emphasizing self-reliance. Nobita commits to a more hopeful path.

Nobita and Doraemon return to the present and prepare for a long arc ahead, within a roughly 48-hour window. Nobita confronts Gian in a tense, emotional clash to show he can defend himself without gadgets. Gian, moved by Nobita's resolve, relents and Doraemon escorts Nobita home.

On April Fools’ Day, Gian tricks Nobita into believing Doraemon has returned. Nobita drinks Doraemon's reversal potion and accidentally causes a chain of chaotic reactions: Suneo is chased by a dog, Gian is dragged away by his mother. The prank escalates until Doraemon reappears, having secured permission to stay because Nobita has started to grow beyond gadgets.

In the end, Nobita's future brightens through effort, authentic relationships, and Doraemon's steady support. Shizuka's warmth strengthens Nobita's resolve, reinforcing that love and friendship motivate real change. The film closes with Nobita ready to face the world alongside Doraemon, committed to growth.