In my previous life, the period after the spiritual energy concentration threshold rose from the Marrow Cleansing Stage to the Hua Mansion Stage, was rather stable and peaceful.
Back then, Yan Yu was still attending a regular university, so his memory of this era of peace wasn't very deep; he only roughly remembered that there were no border conflicts until the end of the year. Cultivators from Lu Country mainly kept their battle readiness and feeling through participating in domestic mysterious realm contests (akin to war games).
By the end of the year, the Rakshasa Spirit Communicators began to trouble the Northern Border in succession. The enemy wasn't difficult to handle, but their vast numbers and scattered incursions put significant pressure on the Dingbei Army.
