In a fierce championship match, the three brothers are working hard.However, at this critical moment, they learned that their grandfather, who was far away in Japan, was in trouble and was facing the threat of revenge from his former enemy.In order to save the closest relatives, the three decided to give up the competition and embark on a journey to Japan. When they arrived in Japan, they realized that the crisis was far more dangerous than they thought.The powerful enemy whom grandfather had sealed appeared again and made a comeback with the accumulated hatred and dark powers.Faced with unprecedented challenges, the three brothers must work together to mobilize all their strength and wisdom to launch a thrilling guardian battle between family affection, responsibility and destiny.