Mr. Godfather Who Walks the Heavens for Friendship

This person has always responded to everyone's requests. Moreover, he did not make empty promises, nor did he give any excuses to show weakness: for example, there were forces more powerful than him in the world that were restraining his hands and feet, and so on. Is he your friend? It doesn't matter. There was just no way you could repay him, and it didn't even matter. But one thing is essential: that you, yourself, declare your friendship for him. As long as this is done, no matter how poor or weak the seeker may be... A human kingdom in danger is a city? Or a modern planet invaded by aliens? Even the poor girl who was used for body modification by the evil magician. None of this matters! What matters is friendship! As long as he gets his friendship, for him, there is nothing in this world that he needs to worry about! And what was his reward? Friend! Is there anything more precious to him than friendship?