In order to obtain the magic of the Holy Grail to fulfill all wishes, seven magicians summoned seven heroes to start a holy war. They have to fight to the end, because in the end only one person can gain the power of the Holy Grail-the Holy Grail War begins. This jihad has not been subdued by the last three battles; now the fourth battle is about to open fire. With the determination to win, the magicians gathered on the battlefield called "Winter Wood" to welcome this sacred battle. However, one of them did not understand what he was fighting for. He is ── Yan Feng Yi Li. Yan Feng Yili could not understand why he had been chosen and was given a curse. However, fate will lead him to meet another participant in the war, that is, ── Wei Miyagi. Wei Gong Qieshi longed for the Holy Grail more than anyone else. He used all cruel means to achieve his goal. In the popular game Destiny Night, there is only a brief mention of the fourth battle 10 years ago. The truth about Shi Lang's adoptive father, Rin's father, and the young Yan Feng Yili going to war will be unveiled one by one.