Attack! Ultimate strengthening human!!

Suddenly, a mysterious group attacks the Cotral's area on Liocott island. Little Gigant and Inazuma Japan rushes off to help and is suprised to see that Garshield is there and he brought his own soccer team! Then Endou finds out that the coach of Little Gigant, Mr. Araya is actually his grandfather, Endou Daisuke! Then Garshield challenges Inazuma Japan to a match. What will they do?