Finished Oniichan no Koto Zenzen Suki Janain Dakara ne just now.
It was as terrible as I expected it to be. The only reason i even watched it was to give me something to do.
Just about finished it, no idea why I'm watching it but I guess it's a filler for me. Pretty much expected the same as you, lol.
Also, about to finish off season 1 of dragon crisis
( reason I say season 1 is because I truly believe there will be a season 2 since there is so many hints and stuff that hints towards an even bigger story)