The task of Book of Songs starts and ends every day from noon 12 to noon 14 and afternoon 10 to 12.
You don't need to get this task. When it's time to see Lu Shusheng tell his book to fly away, you can look for the Book of Songs outside HY.
This task requires a lot of bag space. Although you can type the Book of Songs repeatedly, how can you spell a poem and give it to Lu Shusheng if there is no space in your bag and warehouse? So I suggest expanding the bags and warehouses by about three times, so it won't be too much trouble.
When you kill the Book of Songs, don't treat it as a bright red name. Actually, killing people is easy. It can only run, so it is very suitable for long-range attacks.
This task can be literary and artistic. If you don't need anything to sell, you can go to the old man under the moon to change the purple star stone.