. Name Description Image Leon Dragonia Lionheart main character of this story. He is the owner of the Holy Relic Lion's Heart and serves as a Grail Guardian. In his previous life, he was a young man in his twenties playing nogada in Korea, but he died from exhaustion. He was later reincarnated as the eldest son of the Grand Duke of Dragonia and received training to become a Holy Grail Knight. Through his training, he was chosen by Ariana, the goddess of light and justice, and became a Holy Grail Knight. As a Holy Grail Knight, Leon embarked on numerous missions and solved various tasks. The previous saint of the Lion Heart King died, and Leon became his successor. He became the king of the Lionheart Kingdom and fought against numerous enemies such as orcs, barbarians, vampires, goblins, and demons from the empire. His extraordinary strength allowed him to survive while killing all his enemies, but unfortunately, everyone e...