sentences:  He has four mechanical legs and his back is capable of bringing out two large wings for flight.His only purpose is to destroy Horrors, the Grou Dragon's fangs are used by Makai Knights to hone their skills.When the Grou Dragon first encountered Kouga when he needs the Barankas fruit to save Kaoru, he expresses being curious about the Makai Knight's nature to protect people and challenged Kouga to defeat him with all his strength to win the fruit.