When it comes to publishing but you can't release more than the require amount the company gives you, side stories are the only way you can release. Most likely what happened is that this story became popular enough in demand that the author put those extra chapters as "side stories" so it would still pass for publishing (At least thats my assumption)
Do you paid them? If not then stfu
I'm sorry, but if you didn't write the story, you don't get to tell the author what they can and can't do with THEIR OWN STORY LMAOOOO
bro your acting like you own the story just fucking suck it up and enjoy the damn manhwa rather than complaining about it like a little bitch over somthing so UNNECESSARY
Last time I checked, you aren't the author. Loser ass complaining about how the author does stuff and still gives fans enjoyable content that happens after the main story, why bitch about something unnecessary?
I'm sorry, but if your main story is five chapters long then you don't get to have 20 chapters of side stories. That's not side stories, that's a whole other story. Maybe they get paid more for side stories?