Doraemon Specials (1970) : 3x18

Doraemon and his friends set out to find the Sky Castle’s hidden treasure after uncovering clues that point the way. They come across a diary/blueprint that reveals part of the route and pushes the group deeper into the mystery. As they prepare and travel, they face strange obstacles—animated snowmen and short, tense skirmishes among them. The team bands together to protect their town, balancing moments of courage with lighthearted, supportive interactions. The episode closes with new clues in hand but the castle’s true secret still unresolved, leaving the friends determined to continue the search.