My Magic Systems

Thousand of years ago, a magic portal was accidentally opened therefore creating a link between the monster and human world. With this opportunity, the monsters began to attack the earth with the hope of looting and terminating every living soul in it. Although, we humans fought back we weren’t strong enough to defeat the monsters. At the point near extinction, we humans found the core stones. The core stones were known to contain different kinds of magic with extreme powers. Due to this discovery, we humans developed the systems. These systems are known to give special abilities to whoever posses them but, will this be enough to save earth from the destruction ahead? (P. S support me by reading this book to the end)