The City God (Chenghuang), officially the protector of towns, also tallies this life's good and bad deeds after we die. Hence it is not unusual that his image appears in the last chamber of Dongyue Temple , which is dedicated to the underworld, nor that these two temples sit near each other.
When you enter the temple, look up for the two large abacuses used to calculate whether you have done more good than bad in life; check out the gold scripted plaque: it translates roughly as 'You've come at last', meaning death escapes no one.
In the worship hall look for pink slips of paper on the altar. They're from students asking for help to pass an exam. Yep, school is hell everywhere.