The reason it's called Han Mo is because Wang Taika has been on business trips all the time, and even forgot his name. He only remembers that the letters are py, so just call him Hanpy.,“Bipolar disorder! It’s when you’re manic one moment, depressed the next, and sometimes both at the same time,” Wang Taika said. “Staying in the deep mountains for too long, all alone, that’s what does it to you. I have to take medicine every day just to keep it under control!”,But think about it, Hanpy is right too. I can't just be so depressed all the time, and not going to work really means no income, I can't survive like this!。