Fighting Soul Card

When he woke up, he was a walking corpse on a slave ship. The shackles were added to his body, and he had no memory at all. Only the strange mark on his arm was faintly hot. In this life-devouring golden sand sea, the giant boat rolled over the quicksand, carrying countless desperate souls towards the abyss. Until that day, when the sand demon covering the sky tore apart the deck, he instinctively rushed towards death—— He actually blocked the devastating blow with his bare hands. Interesting. The man who was always playing cards in the shadows chuckled, so you are also a 'spirit fighting master'? But when the seal was lifted, he discovered that the most dangerous person was never the sand demon... But the power that is awakening in his own blood is enough to subvert the entire sea of sand.