Ah, the East Sea, speaking of which, we must mention the old General Zhao Zhonglin back then.
It was this old general, who wanted to avenge his family before his death, who introduced the Japanese, intending to ignite a war between Daqian and Northern Zhou, witnessing the downfall of Northern Zhou before his death.
However, the Japanese had truly wild ambitions. They infiltrated many people into the Central Plains, and despite multiple purges by various forces, they couldn't be completely wiped out.
Later, Japan's Esoteric Sect pretended to ally with the late Emperor Zhou Fengtianming, severely damaging the Northern Zhou Dragon Vein, leaving Feng Tianming on the brink of death, forcing him to rely on the Nirvana Ceremony for rebirth.
As a result, Feng Tianming was killed, allowing Feng Jiwu to take the throne, and making Qing Yu, one of Daqian's greatest enemies, begin to appear on the stage.