Mr. Pisen is a happy farmer, he is poor, but he never complains life. He often says to those who don't understand his happiness:"if we don't enjoy the life, we will be played by life." When he was 18 years old, he married Kenny-the most beautiful girl of the village. When asked why chose poor Pisen, Kenny smiled and replied:"For real happiness."

The next year, Mr. Pisen and Mrs. Pisen had a twin, two boys, they named them Pisen Battery and Pisen Charger , Charger is the old brother, Battery is young. Two boys were quite lively and cute and brought more laughter to family. Though the Pisens was still poor, they were always optimistic to life.

Gradually, Pisen Battery and Pisen Charger grew up, while Battery was more and more naughty and proud, he began to feel ashamed to his poor family. He deliberately wasted time on playing electrical game and dilapidated his study. He began refusing to go to school together with his old brother and even refused to admit he was the child of the Pisens. He didn't run to the top of hill with Charger and talked about his feelings about future to him anymore. And Charger, when he discovered Battery's change, he felt sad. Their family was still not rich, comparing to others. He knew what his little brother's dissatisfaction- he hated their father, he couldn't understand why father keep staying home but not going out to make money, he thought their father is a coward; and he also looked down upon Charger, he thought he is a self-righteous prig who always wants to bear everything for him; he thought he can still live without Mr. Pisen and Pisen Charger and he wanted to prove himself.

Pisen Battery finally left home, he hid himself in a classmate's home, no school, and no study. The fifth day, he heard that bad news: his mum was ill at hospital. He rushed to hospital and saw that poor mum. No blame from anyone. Mrs. Pisen let Charger and Mr. Pisen go out of the room, only kept Battery alone with her. She rubbed his head and said: "Battery, I know what you are thinking of. Your father is a good man. He didn't go out to earn because I am a sick. He worries about me and both you brothers, so he stays. And your brother, he always protects you from others, he loves you. We are poor, but the Pisens are happy. We can't do without you, just like you also can't do without us."

After listening to mum, Battery broke into tears. He thought no matter rich or poor, happiness is the most important, and in fact he had owned and will always own. They were a big family; they cannot separate from each other. At that time, Battery really grew up.