Amazon has put up the product page for the fourth volume of the ongoing Splatoon manga, revealing the cover, release date as well as several other details. If you are interested, Vol. 4 of the series is available for preorder with this link from the shopping website. You can also find the front cover of the book (which is being published by VIZ Media with an ISBN-10 of 1974701867 in addition to an ISBN-13 of 978-1974701865) with the image placed just below this paragraph.
You can also check out Amazon’s product description of Splatoon Manga Vol. 4 below:
All-new adventures featuring the beloved characters of the hit Nintendo video game!
The Turf Wars have started in Inkopolis, and the team that inks the most ground will be crowned the winner! Based on the hit Nintendo games!
The preliminary rounds have come to a close! As the Inklings gear up for the main round of the Square King Cup, they must prepare for all kinds of teams that are way stronger than they are—and maybe even have to battle the undisputed champion—the player known as Emperor!
Splatoon Manga Vol. 4 is coming out on the 11th of September in the North American region.