Yato tilted his head a bit, he didn’t knew what was a yen? Well, for the looks he had, specially that bright sun-colored-like hair of his, he might be a foreigner. 
“ If you don’t have money i can’t help you out, i work only for who can pay me. Wishes ain’t something you can just give away ”
Thinking about it twice he decided that at least he could show him how the cash looked like in this new era, when he came to the human world he had no idea of the value of things, so the first years were really tough.
“ I will give you a hint, look at this carefully ”
Pulling out a big empty sake bottle out of his worn out jersey, Yato placed it on the ground near by the boy’s feet.
“ This is my precious treasure, i’m saving up all the money i can make my  dream come true. Inside this bottle there’s aproximately 1.000 yen, 5 yen is like a penny, or something like that ”

「 ℕ」— This truly was a God before him producing a bottle of money just like that. The blond crouched to stare into it, noticing how familiar the coins looked to him. Without hesitation he pulled out a Ryo from froggy; a wallet he never went anywhere without. Holding the coin against the bottle, a confused look crossed his face. “Neh, they’re the same ‘ttebayo.. But it’s not called Yen.. it’s Ryo..” He mumbled, mostly to himself, a tilt of his head forming the longer he stared. “Hmm.. So will this do?” He asked the God, holding up the coin and placing froggy back into his pocket. After all, one wish was all he really needed, even though there was a thousand things he could have asked for. Only one would suffice, the others needing his own touch to be fully successful.