The Ultimate Card System

I have a baby tooth that I won't replace, so you can call me Baby Tooth King. This is a novel for the sake of having fun. I am already working, so the update time is not fixed. In order for everyone to have fun together, I conceived a character during this period and wanted to write down his story. It is my first time to write it, so I may not write it well. I hope everyone understands. The protagonist of this book may be a summoner, maybe Long Aotian. This book is the story of his harem in various worlds. I hope everyone will like it. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.