Lord: Infinite Dragon Soldiers at the Beginning

I, the most ordinary person, have traveled through time. I arrived in a traditional alternate world and became the most disliked child of a prince of the kingdom. Yes, that was me. Fortunately, the sign-in system has arrived, and there is a dragon arsenal at the beginning, where you can summon unlimited dragons. The young dragon stands ten thousand meters tall, has a skin that is immune to all magic, and has dragon flames that can break all magic. The temperature of the dragon flames is 100 times the core temperature of the sun. Stop talking, I am invincible. I enter the novel when I have something to do, and leave when I have nothing to do. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.