Just finished 'Welcome to Hell' and that ending hit like a truck. The protagonist finally breaks free from the cycle of torment by realizing the 'hell' was his own guilt all along. In the final act, he confronts the demon king, only to discover it's a twisted reflection of himself. The twist? The entire underworld was his psyche punishing him for past sins. He embraces forgiveness, causing the realm to collapse. The last scene shows him waking in a hospital bed, alive but changed. The ambiguous part is whether it was real or a near-death hallucination. The author leaves clues suggesting both interpretations work, which makes it linger in your mind for days.