Dorami & Doraemons: Robot School's Seven Mysteries (1996)
Original title: ドラミ＆ドラえもんズ ロボット学校七不思議！？
Dorami & Doraemons: Robot School's Seven Mysteries is a 1996 Japanese-language animation movie directed by Yoshitomo Yonetani, with a running time of 31m. It stars Nobuyo Oyama, Keiko Yokozawa and Keiichi Nanba.
It is time for Doraemon's younger sister - Dorami-chan to graduate from the Robot School. But a mysterious wind sucks Doraemon and the principal away. Dorami escapes, and finds Doraemon's Good Friend Telepathy Card. This is a device Doraemon uses to communicate with his friends, collectively known as The Doraemons.