Rena, Claude, and Celine discover a sign pointing them in the direction of a town called Mars. Celnie tells them that this town is a town of Heraldic sorcerers like her. Then Celine notices a bog crawling on her hand and runs away. That is when Claude and Rena hear someone scream. They go see what the trouble is and find some bandits trying to steal a stagecoach full of children. While saving the children and their teacher, Rena and Claude meet an old friend of Rena's named Dias. Rena and Dias grew up in Arlia before he left and became a great swordsman. After making their way to the town of Mars, the town elder and the teacher thank them for saving the children. They tell Claude, Rena, and Dias that the bandits wanted to capture the children and use them as hostages to get the Book of Seals, which is a book filled with Heraldic secrets and is never permitted to leave the town. They ask Claude and Dias to help them protect the town. Claude accepts, as does Dias. Dias, however, tells them that he will be enough then leaves. Rena follows and tells Dias that she thinks Claude is the Warrior of Light and that they are going to El to see the Sorcery Globe. She asks Dias to help Claude. The next day, Claude finds Dias in the forrest and goes to apoligize, but Dias attacks him using only his left hand, pointing out his weeknesses. After beating Claude senseless, he talls Claude that he's too weak to protect Rena. Claude gets up and attachks Dias this time, forcing Dias to use his right hand. This makes Dias mad and he uses Kuuhazan to defeat Claude. After getting Claude back to his room in Mars, Rena uses her powers to heal Claude. It's not long after that the town is attacked. Dias is lured away by some of the bandits, but is forced to face another enemy. While he fights and defeats them, the town elder tells the people there that this is the time to move the book to a safer location. But, Celine and Rena reveal that the real elder was attacked and this man is an imposter. Rena used her healing ability to help the real elder. The fake elder reveals himself to be a shape-shifting serpent. Claude and Rena hold him off while Celine and everyone else leaves. After a little fight Claude uses Kuuhazan himself to defeat the serpent. As Claude turns to leave, though, it jumps back up to attack him, but Dias uses his Kuuhazan, which is more powerful than Claude's, and kills it. Claude and Rena spend some time alone to talk, but Celine soon joins them and they continue on their journey.
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