Time Travel: I Climbed Down the Wall of Mr. Hou's House

In order to return to the future, Xu Nuan must closely understand every move of a certain man, so Xu Nuan thought of a way On the first day, why was there a snake on the wall? The next day, why was there an ant's nest on the wall? Why was the wall covered with broken bowl dregs on the third day? Why is there a big head on the wall on the fourth day? Xu Nuan…………