Zhao Yu's intention was obvious. He wanted to enter the mountain with Miao Ying to continue to investigate clues for the ancient tomb murder case, to trace those grave robbers that were looking for the Golden Buddha statues.
Of course, besides work, Zhao Yu had selfish motives, too. First off, if Miao Ying were to say yes, even just imagining entering the woods alone with her was a beautiful sight. Just in case... I am thinking "just in case", we really find the Golden Buddha statues, then... Hehehe...
So, Zhao Yu aimed at the opportunity to arise, where he would get wealth and sex simultaneously. Hence, he brought up the suggestion to Miao Ying.
"Captain, I will go too!"