Fifteen years before the story starts, he fought Dark Schneider in a battle that would last for several days. Dark Schneider has already succeeded in conquering most of earth at this time and would only need to get a few more kingdoms to rule to world. Lars found himself losing the battle and hadn't the chance of victory. Finding no other choice, he summons the "Dragon Knight", a mechanical robot that towers over 500 meters and was original made by the Twelve Wise Men of Europa. The dragon itself, absorbing and multiplying the spiritual energy of anyone who used it, proved useful and helped Lars kill Dark Schneider. The Dragon Knight itself however was cursed, as it was meant to be used against Anthra-Sax, not Dark Schneider, and transformed him into a baby dragon. After the death of Dark Schneider, Lars is said to have gone missing, or even died, as no one knew what truly occurred on that day.
In the form of a baby dragon, Lars spends his time looking for a successor to the Dragon Knight. He was eventually found by Gara, the ninja master and one of the "Four Lords of Havoc" and made to be his pet. He even follows Dark Schneider around to observe him, knowing full and well that they were once deadly enemies. Right before the angel attack on earth, the Dragon Knight was destroyed by Anthrax, thus freeing Lars from its spell. He tells Geo and the rest that the Dragon Knight isn't holy as they once thought and it was the reason behind his cursed form.
During the angel attack, Lars fights on against the angels using the power of the dragon. He is the last to stand his ground (as the Sorcerer Shoguns and Samurai were slayed), though he eventually is killed by the higher ranked angels.