Other than Body Cultivating, Mo Mingzhi had been learning the Sky Word Language even when she felt spent up from exhaustion.
To pursue her dream; which is 'him', she wasn't willing to easily doze off or rest and thanks to her perseverance, she was able to interpret the Sky Word Language and even talk some words fluently in it, just like how she managed to talk to Emine.
Besides, the maid who had taken care of her for some time was especially helpful because she had been able to use her broken Sky Word Language to practice on her.
As for how she managed to comprehend the Mortal Grade of the Sky Grade Cultivation Manual, Tian Long had specifically translated it into Chinese for her to understand.
Even now, she had a copy of it in her room.
By the time she had finished the second book, dawn descended and slowly lighted up the Grand Sea Continent.