The author is a high school student. This book isn't under contract, so read without worry.
"As a summoner, I'm sorry I can't summon girls!
As a normal summoner, how am I supposed to survive when the first world is overrun with zombies? Xiaobai, don't bite them with your mouth! Use a charge, a tail sweep, a dragon cart, or a shoulder bash!
As an excellent summoner, how could I lose when a flying dragon is right in my face? Tell me, how could I lose?!"
Ahem, that's more or less the story: a summoner's journey through infinite worlds in search of his big sister.
P.S. This is my first book, so please forgive me if the writing isn't great.
P.P.S. I'm still a freshman in high school, and my school only gives us a proper break once every two weeks, so don't get your hopes up about updates. I write this book to relax, but I think I should be able to finish it before I graduate high school. Probably.