Monster Card System of All Realms

This book tells the story of the protagonist who, after merging with the system, gains the ability to transform into various monsters and equip monsters with skills, and tells the story of the protagonist's experience of traveling across the world. This book does not deal with harems, let alone stallions. This book is updated twice a week. I only write books to satisfy my own interests and hobbies. If you don't like this book, please leave. After all, there is no use in scolding me. It has no use except to show that your quality is very poor. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.