As the Strongest Hero, I Was Captured by the Demon King

In this world full of fantasy and thrills, I was once a being respected by everyone and dubbed "the strongest brave". After countless fierce battles with monsters, I have returned victoriously with fearless courage and strong strength, guarding the territory and peace of mankind. However, the trajectory of fate took a sudden turn for the worse inadvertently. Those humans who were once protected by me and whom I defended to the death chose to betray, driven by greed and fear. They set a deadly trap when I was unprepared. In the fierce battle, although I tried my best, my fists were no match for my four hands, and I was eventually seriously injured. My once indestructible body was now riddled with holes, and my armor and clothes were dyed red with blood. At the desperate moment when my life was about to come to an end, with my last bit of consciousness, I dragged my heavy and scarred body step by step to a door that exuded a faint warmth. At this time, I no longer have the heroic appearance of the past. I am just a poor man who is on the verge of death and full of sorrow. With the last vestige of desire for survival, I used all my strength to knock on the door that might be the salvation of my life. But whether the world behind the door contained unknown hope or deeper despair, I was no longer able to think about it...