
I felt the same way. You should keep reading, it gets better...especially now that a couple of chapters have been updated!

A lot of people don't like it because it happened to be a coincidence that the chapters got all mixed up and updated in the wrong order with bad quality. The story itself is the best side-story in the manga so far, because it's actually relevant to the plot and the main couple for a change.
I recommend reading it simply because it reveals so much about the world of spirits and why things happened the way they did so far in the story.
Many times Im re-read this manga and then always stop at vol 6 ch 37 the story begin about Shinobu and the Mermen. Its just so hard to continue because I dont really like it, so I wanna ask should I keep reading or just stop here?