Ismael was not a young person. He may have appeared to be less than 40 years old, but in fact, he was very close to 100 years old. So when he saw Luan fight, he knew that if he continued to go against him, death was what awaited him. Having no choice and wanting to live, Ismael transformed himself into an even more ghostly shape and floated in the air and even dropped the spear on the ground, not wanting to carry weight. Then, he started flying at full speed, believing if he escaped from the island across the sea, he would not be at risk for his life.
Of course, he did not know that Luan could also fly. The two were both in the Second Order, but he was very close to the Third Order, which was a reasonably long distance from those who just arrived in the Second Order since he needed just one step towards achieving the Third Order.