How many episodes of the new princess huanzhu crape myrtle?

Did you leave the bachelor's office because Ertai's aunt said that she and Fu Erkang would have no future, and she left? Fu Erkang searched earth-shaking and finally found it, and sent Wei Zi to the palace to be a maid-in-waiting for Princess Huanzhu (Little Swallow). This is episode 16, episode 17 and episode 18. The content of (online version).