Han Li's primary objective for coming to the Blaze Dragon Dao was to recover his lost treasures, and he also wanted to read the sect's scriptures pertaining to the laws of time to see if he could learn anything from them.

Even though he was able to manifest crystals that also contained the power of time laws using his Heaven Controlling Vial, the crystals served no other purpose than to speed up his Earthly Deity Avatar's derivation of heavy water, and he was unable to glean anything from them.

As one of the three paramount laws, the laws of time were extremely profound, and given his aptitude, it was downright delusional to think that he could master the laws of time unless he had some immense luck on his side. 

In contrast, these sects had already studied the laws of time for millions, even tens of millions of years, and there was no lack of prodigiously talented individuals to come out of these sects during this time, so they would've surely developed some valuable insights.

Of course, if it proved impossible for him to access the scriptures that he desired, then he wouldn't force the issue. Time was of the essence for him, and he couldn't afford to waste it. Given how vast the Northern Glacial Immortal Region was, he would always be...