The naughty sisters (Xuan Tongyi Ji Yiyi) played pranks on the human world and made the world crazy. Many people couldn't bear the torture and committed suicide collectively as a sign of resistance... Causing overcrowding in heaven and hell... The Emperor of Heaven and King Yama couldn't bear it anymore, so they begged the naughty sisters to reincarnate in another world. After the naughty sisters squeezed the Emperor of Heaven and King Yama for a lot of benefits, they finally passed through the bird in a gorgeous way~