His Obsession Became My Home

Nobita's life collapses on the day he was supposed to begin a new one. At the wedding altar, Shizuka looks him in the eyes and says the words that break him completely: "No, I don't." She runs away with Degisuki, leaving Nobita humiliated and shattered in front of everyone.

Unable to face the pity of his family, friends, and even Doraemon, Nobita runs to the small mountain behind his old school-his childhood hiding place for every bruise, failure, and heartbreak. Under the old tree, he cries until evening... until a deep voice calls out for help.

He finds a tall, dangerously attractive stranger bleeding from a gunshot wound. As Nobita treats him with the first-aid kit hidden in the tree, the stranger watches him with unsettling intensity, refusing to explain how he was hurt. When the bandage is tied, he thanks Nobita quietly, promises to repay him someday, and disappears as suddenly as he appeared.

Moments later, Doraemon finally finds Nobita, relieved he's safe.
But neither of them knows that the mysterious man - ######, who vanished into the shadows - has already decided that Nobita now belongs to him.