the second couple barely has any scenes until late into the series and then they only figure in some chpts? the only time they had full focus was during their side stories, which are easily skippable. if u love the main couple u should def not stop reading its still 95% about them lol. (maybe u confused the sides with the main series...the sides were right after s1 and before s2 started)
what u wanna do is use lezhin, u can read the chpts here, but lezhin will clearly label what are side stories and what is the new season. so just look and skip past the ones labeled side story and start where s2 starts and then its all about the main couple, with only brief references/appearances of the other two guys (who arent even Together anyway) so if they bore or annoy you it shouldnt detract from the story at all. once s2 ends aeju plans to do more side stories with the alpha/alpha couple so feel free to skip those and tune back in when s3 starts (im not sure what the date will be for that but there's still 6 chpts of s2 left anyway)
This story has been on my list for a long time but I couldn't read it anyway. Is it worth reading?