The so-called secrecy was not about lying to their mentors and elders, which was impractical.
What Chu Liang hoped for was to limit those privy to this matter to a small subset of the upper echelons of the Three Immortal Sects without spreading it.
The importance of the Black Dragon Secret Realm was such that, once leaked, it would inevitably make headlines in the Seven Star Mansion Report, and then everyone in the world would know about it.
There was an old saying that a man is innocent until he is guilty of carrying a gem.
Given Chu Liang's current cultivation, if the news that he had obtained the Black Dragon Ball got out, then countless people from both the orthodox and evil paths would likely set their sights on him, hoping they could get him to cough up the Dragon Ball.
At that time, he couldn't guarantee that he would remain safe from people's unfair treatment, just like how he had mistreated the Golden Butterfly Baby.
