Hero of the Waves (Highschool DxD x Male Reader)

Hm? The story has not ended with a wedding? It appears that the fates have more planned for (Y/N) (L/N), or Sealboi. There are many threats and mysteries lurking in the world around him, but at least he's not alone now. There await many challenges, some of which you experience right now. Will (Y/N) triumph over these challenges? Well that's not for me to say~

(Disclaimer: I don't Highschool DxD, images used, or the storyline.)