Kuroiwa Ryuusei

Kuroiwa Ryuusei (黒岩流星), also known as Grandfather (グランドファーザー), is the coach of The Excellar and Shinsei Inazuma Japan.

Appearance
Kuroiwa is an old man with long white hair tied in a low ponytail and a beard. On the right side of his face there is a huge scar, partially covered by a pair of sunglasses.

Plot (Chrono Stone Game)
He appears in the game, but on an exclusive event by connecting both Neppuu and Raimei game. After doing so, you unlock the Grandfather event, he appears as the coach of The Excellar. He was brought back to life and after the match, he dismissed Garshya Wolfein and Vanfeny Vamp since both of them cannot live up to the mission. Potomuri talks to him about who could be the players that can save the planet. He also states that this is his final mission as a coach. The mission though, was never explained and it was left as a cliffhanger in the game.

Plot (Galaxy)
Kuroiwa is introduced at the start of the story as the coach for the new Japanese team, after which he reveals that only eleven people will be selected for Shinsei Inazuma Japan. At the end of the episode, after Shinsei Inazuma Japan has los with 10-1 from Teaikoku Gakun, Kidou Yuuto is asking the question; "What are you thinking coach Kuroiwa?" This is followed by "no, my mentor, Kageyama Reiji", giving a a clue that Kuroiwa indeed could be, as suggested by his similar appearance, Kageyama Reiji.

He is later seen talking on the phone with Endou Mamoru, telling him that "it went as expected". . And that everything is going according to plans.

Inazuma Eleven GO 2: Chrono Stone

 * Power of Tactics increased by 50.
 * Total TTP reduced by 30.

Trivia

 * Kuroiwa's first appearance was in the Chrono Stone game under the name of Grandfather.
 * In the first episode of the Inazuma Eleven GO Galaxy anime Kidou Yuuto refers to Kuroiwa as "my mentor, Kageyama Reiji", but it's still unknown whether they are indeed the same person.
 * It was stated in the first episode of Galaxy, that Kuroiwa is famous for his achievements overseas. However these achievements he has made are unknown.