Three months after retiring, he went from being a SWAT officer that everyone feared, to an ordinary person living in a small apartment in the old city. He had no place to spread his iron-blooded energy, so he could only run ten kilometers around the river every morning, and hit sandbags for half an hour at night. The muffled sound of his fists hitting the canvas was his only connection with the past. The old mobile phone on the wall suddenly vibrated. It was not an ordinary message notification sound, but a special ringtone specially set for it.
