Harano's idea of looking for the monkey was really simple—he was just bored.
He had no money and nothing to do lately, and suddenly remembered the monkey guy, so he thought about finding him and whacking him on the head, hoping to change history a bit—since the monkey was directly linked to the war in Korea, and indirectly with the rise of the Later Jin. If he managed to club this kid into an idiot, maybe he'd save millions of lives!
What a huge merit that would be. With that kind of good karma on his record, who knows, maybe he'd become a sage on the spot and ascend straight back to the modern world. No more stress about being stuck in the Middle Ages of Japan, where any day could be the day he got himself killed.
