t the hardest debt to repay in the world is a favor. So if you can avoid owing anyone favors, you definitely shouldn't owe them any. If Youyou doesn't pay tuition, then he'll owe grandpa a huge, huge,...e, it didn't seem logical. However, Su thought more deeply and couldn't rule out the possibility that He Ya had bribed another member of his team, creating an insider situation! But He Ya didn't seem...