Thread:0123456789 The Great/@comment-24053170-20190608185105/@comment-30346665-20190609094154

It's OP and ED. They are not on the same sequential line.

In this case, they are currently the only Opening and Ending. They are on the parallel line of song listing.

If I am just a viewer of a page, I assume that whatever in the "next song" info tab on an Opening page's infobox, is the "Next (season's) OP"