Review Detail of Blazzing18 in Zombie Apocalypse: Creation

So this book looks pretty good!! I read the description and was really interested in it but there is 1 thing the is bothering me.... It says no system so Y is that?? Y isnt there a system in this book if stuff can come out of nowhere 1 day and all that?? Thats what i got out of the description.... it just seems weird if this book has stuff going on in it and no system!!! I think a system should be in this book just from reading the description but thats just my opinion!!