In the Hot Weather of the Last Days, My Daughter-In-Law Knocked on My Door

As the heat of the apocalypse approaches, my son accidentally falls from a tall building and dies on the spot because of a problem with the construction boss's materials. The owner of the construction site paid a compensation, but I didn't ask for a penny. I left it all to my daughter-in-law and grandson. My daughter-in-law said that she was busy with work and had no time to take care of her children, so I traveled thousands of miles from my hometown to come here to help take care of my eldest grandson. Unexpectedly, the moment I went out to buy food despite the high temperature, my daughter-in-law locked the door. Braving the high temperature of more than 40 degrees, I finally died at the door of my house! Open your eyes again. I went back to the day of my son's accident.