New Year's Eve Memoirs

I am the son of a wealthy family in the countryside. I hold an idle job and live a miserable life of eating and waiting to die. But the shocking crisis of "the end of the kingdom" suddenly came, and a plan to save the common people actually pushed me to the forefront - making me the person closest to the son of the prophecy? My peaceful life was completely shattered, and I was forced to deal with open and covert threats, vowing to find out the man behind the ups and downs, even if the road ahead was full of thorns...