Doraemon: Lost his Memories

Doraemon: the robot cat from the future is here again for an super awesome adventure with nobita, shizuka, suneo, and Jaian (takeshi) and with the help of secret gadget pocket.

But whaf if Doraemon's memory will be lost? will it be the end of their friendship? is it the time for doraemon to come back to future and live there forever? will his memories come back? or lost FOREVER?!!