"Who is it?" Alex called out, but strangely no one answered. He opened the door and was startled to see the listless teenager who had asked him for directions earlier.
Eyebrows furrowed in confusion, Alex asked, "What do you want?”
"Sorry, do you have ten star coins?" asked the boy.
"Yes," Alex replied uncertainly.
The teenager brightened. "I can exchange it for 100 star coins," he said, taking out a hundred star coin bill from his pocket and handing it to Alex.
Alex stared at the boy, baffled. "Why do you want to exchange 100 star coins for 10 star coins? I don’t have change," he said irritably.
I only have 30 star coins on me. Why didn't he go to the store for change? Exchanging money with me is stupid.
"I don't need your change. I can give you 100 star coins for your 10 star coin
