If the disciples of Fuli Gu want to leave the valley legitimately, there is only one way to go - to win first place in the monthly test.
Su Minhua, a disciple of the medical sect, can get the first place every month, but she never leaves the valley, so all the disciples of the medical sect rack their brains to get the second place every month.
The disciples of the Poison Sect in the same sect are very relaxed, because their senior brother Duan Hong can also take the first place every month, but this senior brother has to go out of the valley every time. Later, one time, Su Minhua and Duan Hong left the valley together...