The time Jim had was already small. He knew he had a few hours before he lost his window to summon these warriors ever again.
And from what he saw, despite him being able to suppress them so easily he knew this was only because of the trick his old man told him about.
If they faced up against anyone else, they wouldn't be this gentle or submissive at all.
Each time he summoned five of them, that warrior from before started talking and convincing them to submit. He heard the word 'father' so many times already during the past hours.
With each five summoned he was happier. With each father's word he heard he became more confident.
Yet all the happy times had to come to an end. And the end came so fast without even realizing it.
He tried to use the summoning array again, yet nothing came in return. He stood for a few seconds unaware of what went wrong before he finally realized it.