With Du You's advancement, the two sisters and the Unicorn Bubble also advanced to tier five, now all adapting to their new strength. The increase in power was significant, and although it happened naturally, it wasn't something they could instantly adjust to.
"Interesting, once you reach tier five, indeed you don't need advancement materials anymore."
Du You let out a sigh of relief, recalling the difficulties he faced when searching for those advancement materials, which had tormented him greatly.
Now it was better, entering tier five, as expected, meant he could enhance his skill levels without the need for advancement materials. Du You didn't hesitate to upgrade his skills. As for his own level, he didn't hesitate either and first advanced to level 43.
