After being chosen as the captain of the golden unit, Kraftvoll decided to choose Prince Aragorn and Princess Kyomi as his First Lieutenant and Second Lieutenant.
After Regimental Commander Kyleen dismissed them, Kraftvoll decided to talk privately with his Second Brother.
After explaining his side about choosing him as his First Lieutenant, Kraftvoll said to the elven prince, "Now that you know my reason for choosing you, I want you to promise me one thing."
"It depends on the promise, First Brother," Prince Aragorn to his First Brother.
The elven prince was a man of his promise. That's why he only promise things that he knew that he would be able to comply especially that were people important to him.
Despite knowing his Second Brother, Kraftvoll continued to insist on the elven prince saying, "No. Promise me right now that you will do it. I know that you trust that I would never ask you anything impossible for you to do."