I heard you like carriers so we put a carrier in a carrier so you can buy carrier doujinshi from a carrier.

Pixiv title: 海上に浮かぶ会場 (A [doujin] event site on the ocean)

海上 (kaijou) = "on the sea"
会場 (kaijou) = "event site"

Somehow i get this feeling Tenryuu and Tatsuta is going to drop by
post #1594347