Gu Zhen Ren
But when Ren Zu gave it his heart, this Gu suddenly gave out endless light. In this light, the Predicaments screamed in horror: “This is the Hope Gu, withdraw! We Predicaments are most afraid of hope!” Okay, I have to say that this sounds f*cking retarded, but it's just an old tale, so it's fine. WE ARE MOST AFRAID OF HOPE. Wow, just wow. It made me cringe really hard :P
For those making fun of <The legends of Ren Zu> it is actually one of the best parts of novel.U will found out in the future how it's real.Also the moral of the story is we spend our youth to gain strength(physical power) and after spending middle ages we gain wisdom but in old age we lose both and can only have hope.Also Ren zu gave his youth to the biggest gu ie in youth we go after the biggest things or expensive thing he gave middle age to most beautiful gu ie in middle age we go after beauty.