In a small village, Bayu lived with his mother in an old hut. Every holiday, he helped his mother sell cakes at the market, feeling sorry for his mother's burden.

One day, while at the market, Bayu noticed a bicycle seller. He wanted to buy a bicycle for his mother, but alas, he had no money. He could only look at it longingly and dream of a day when he could afford it.

While selling cakes with his mother, Bayu noticed an old woman trying to sell rotten watermelons. The people around her laughed and ridiculed her, but Bayu felt sorry for her.

"Mom, I want to help the old woman," Bayu said. His mother, understanding his kind heart, agreed. Despite the taunts from the people around, Bayu bought the rotten watermelon, making the old woman extremely happy.

Returning home, Bayu and his mother were hungry. They decided to eat the watermelon. To their surprise, inside the rotten watermelon, they found many gold coins.

Suddenly, a beautiful fairy appeared. She revealed herself to be the grandmother of the watermelon seller and said, "This is a reward for your kindness, Bayu."

As soon as the fairy disappeared, Bayu and his mother were left in shock and awe. They looked at each other, their eyes wide with disbelief and joy.

With the gold coins, they were able to buy delicious food. More importantly, Bayu could finally buy the bicycle he had always wanted for his mother.