The number of chapters for the side stories was announced by the author when the chapters started back up again and many people have commented how many there would be in this comment section. (You can find this info by following the author) I can understand that info can easily get lost in the comments. I get it, a lot of us wanna know what's going on with the main couple after the S2 ending. But the author said side stories would come before S3 started. So all you can do is be patient and wait. After saying all that, this was the last chapter of the side stories, chapter 67 is the start of S3 and we'll be back to the main couple in the next chapter on May 25.
I'm sick and tired of coming back to this manhwa only to see the side couple again. Also, I think the uploader deleted the previous chapter that said they're going to bring back the main couple but we sadly have to read through another side couple chapter. I'm not saying I hate the side couple but come on now... this *was* my favourite manhwa until the alpha x alpha couple took over. It was so unique and the character development was so good but WE CAN'T GET ANY OF IT ANYMORE. I hope there was some sort of notification for the main couple story continuation.