As the boys' father dies, he says, "Share this property and work together. I leave this land to both of you."
The older brother kicks out the younger brother and takes the land, leaving him with nothing.
One day, the boy saved a bird after getting attacked by a snake. He thought nothing of it, but little did he know fortune would come his way.
The boy's family found a suspicious melon, and when they opened it up, tons of gold fell out!
After hearing about this, the older brother saved a bird, but not genuinely. Soon after he found the magic melon, and when he opened it up, thousands of fighting warriors came out and beat him up.
The older brother's land was destroyed, and he ran to his younger brother, who graciously took him in. Even after being mistreated.