Come Back, Doraemon

"Come Back, Doraemon" is a touching story within the Doraemon series, depicting Doraemon's brief departure from Nobita and his subsequent return. The story begins with Doraemon informing Nobita that he must return to the 22nd century, leaving Nobita deeply dismayed. Despite this, Nobita strives to live independently and ultimately demonstrates courage and determination in a fight with Gian, proving his growth to Doraemon. In the meantime, Doraemon leaves behind a secret gadget, the "Lie 800", which makes spoken words manifest the opposite effect. After Nobita accidentally uses the gadget, Doraemon returns to his side. This story emphasizes the importance of friendship and growth, showcasing the strong emotional bond between Doraemon and Nobita. The work has various adaptations, including a 1979 anime special, a 1998 short film, and episodes within the 2005 anime series. All are based on the same plot, with minor differences in detail, but all convey the same heartwarming message.