A man named Tenshiro woke up inside the cave but without memories of what is going on, suddenly he sensed familiar Life Forces not knowing what it is. He decided to follow its trail when he realized he was running so fast and able to see clearly in the dark. He sensed another Life force which is dying so he decided to follow it instead of the familiar one. While following, he sensed another unfamiliar Life force that made him chilled. He met some adventures fighting with the ogre then he immediately helps them and kills the ogre. The Adventurers don’t trust him yet but they let him come with them to the town and suddenly he remembers his past and realized that he is in another world.