He knew he was the hero behind this victory, but he had to step back and let others enjoy the limelight of this huge credit.
He might be the mastermind behind all this, yet without their help, he wouldn't have succeeded.
He tested these youngsters more than once, and eventually they gained his respect. They followed him even when he took that impossible leap, plunging directly towards the opened mouth of death.
And yet they kept advancing and never retreated! It didn't matter to him if they got questions and doubts. They all were humans and that was a natural thing.
He cared more about their actions. When they jumped after him and followed him in the middle of the sea of monsters, he knew he could trust these kids.
As for the matter of nourishing them and guiding them in their training in the future, it was another matter postponed for another time.