Hmm, think it would give the story more weight if it showed and explained what was on the cards he uses. But its okay overall
Conquered world, then forced to return, brought back but suddenly as powerful people from before magically appear from no where to fight
Is the story going to progress or just keep doing side story type of chapters
it'a harem manga, a guarantee of zero progress
Personally i think the story has stopped progressing and looks like fan service at this point
It's not like there was much of a story to begin with, the marriage thing has been forgotten for over 40 chapters now
Two different mangas by same author but only difference is a love letter. Why write another with exact same story line
So he can only summon none military ships, wanna see a destroyer class ship show up and demolish fortress wall like paper