Siheyuan: from Being Bullied as an Orphan to Traveling Through Time with Myocardial Infarction

After five kills at the Internet cafe, he fell down and transformed into an orphan in the 1960s, with a courtyard full of beasts. The original owner was bullied by his neighbors until he had a heart attack, so I took over directly. This time it's my turn to punish these scumbags!