Dimensional Duel Arena: the Valkyrie at the End of the Beginning

As we all know, since ancient times, the male protagonists of hot-blooded anime are usually the weakest among all anime. I mean compared to other anime. For example, Sun Wukong in Dragon Ball is unable to beat the funny character Arale. For example, Tom Cat can transform at will due to his resistance to attack. The Deadpool next door is crying. For example, Big Big Wolf casually invents a time machine just to catch a sheep. For example, Crayon Shin-chan has saved the world several times. Even if the world is falling apart, Shin-chan is still the calmest. In another world, Xuanyuan obtained a strange system and was forced to join the Valkyrie at the beginning... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.