Kaiketsu Yanchamaru 3: Taiketsu! Zouringen

The princess has been kidnapped again, this time by a pair of menacing-looking figures. Locked in a tower, she manages to write a plea for help on a scrap of paper and then sends a paper airplane out of her prison. Miraculously, it reaches her boyfriend Yanchamaru who, being the upstanding samurai that he is, immediately sets out to save her. Kaiketsu Yanchamaru 3 is the final sequel to Kid Niki ...