I Had Just Mastered My Divine Arts When the Saintess Summoned Me as Cannon Fodder

The magic skill at the beginning, what about this thing? I went through about 10 chapters and upgraded from fighting monsters from scratch. I started licking it after just a few lines. I originally thought it was about fighting monsters and upgrading to invincibility or close to invincibility to save a girl. I didn't know that it was only 3 chapters. How could it be possible to summon the thousands of skeletons that I just talked about? The same skeleton was summoned back with just a little more strength, and later on, after half a chapter, there was an additional one who would block the knife for you, help you fight monsters, and even let the experienced sister, Goodbye Giant Poison, really couldn't help but say: What the hell are you?

The title and introduction are very good, but I really can't get through these three golden chapters.