Endless Ending [Whistle Direction]

Ten years ago, the Confederacy rebelled, splitting the Azelorian Empire into two and falling into a protracted civil war. After ten years of civil war, the number of guides became even rarer, and the empire suffered huge losses. At the same time, spy leaks within the North Central Guild are becoming increasingly rampant. If the war cannot be stopped, the empire may run out of life and fall into a huge crisis. Colonel Han Yi is the current head of the Northern Empire and Central Guild Sentinels, a rare S-class sentinel. S-Class Sentinels are extremely rare. Their strength, speed, and acuity are several times that of A-Class Sentinels, but they are also extremely dangerous and can easily lose control. S-class guides are even rarer. The only S-class guide in this era retired 20 years ago. Due to helplessness, the guild can only pair relatively high-quality A-level guides with S-level sentinels. This is an extremely risky but necessary approach. A guide is to a sentry what a scabbard is to a sharp blade. As the ultimate guardian of war weapons, a guide needs to be willing to sacrifice everything, including his life. The new guide Gu Xiaorong, who had just passed the A-level exam, embarked on a journey to accompany the beast before he understood what he was about to face. On one side are the endless wars and killings, on the other side are the dangerous and easily mad S-class sentries, struggling in the endless abyss, where is the way out... 28-Year-old tough and cold-blooded S-class sentinel × 19-year-old A-class guide who hides his secrets A growth-oriented heroine, upper-lower literature, with some private settings There is a knife in the later stage, and the ending is HE Intention: war, love, love and death