Because of the growing popularity of webtoons in South Korea, Naver has been experimenting with a new form of advertising known as Page Profit Share. PPS is a type of visual ad that uses a webtoon’s art and characters to promote a product. These co-branded ads are featured alongside or at the end of a webtoon episode. Due to Tower of God's rising popularity, SIU have created several artworks showing notorious characters that ever appeared over the webtoon.