Cassette Red 13

Details of the cartoon

1. Set in ancient era of Japan (samurai, shogunate,...)
2. A world where there are ordinary human and robot-like human.
3. Main character is a blue robot-like human that love to eat "tong yuan" which is something like few fishballs on a sticks. He wield 2 legendary swords which able to change form. Each sword has a 'kanji' word on it. One of it spells "Earth"
4. There is another red robot-like human which wield s long katana on its back. Very skillful and has a cool character.
5. Together the blue and the red robot with a princess embark on a journey on the earlier episode.
6. Very old cartoon, watched it on a video cassette about 13 -15 years ago.