Are there romance subplot??

none at all!

or well, the mc likes the saintess, but it's a one-sided thing and a bit charming rather than annoying tbh ლ(´ڡ`ლ)

But are they the end game couple?

Thanks btw ヾ(❀╹◡╹)ﾉ~

it seems like it. (i mean unless reidrun was actually the endgame all along ლ(´ڡ`ლ))

Thanks for the info!!