Plausible theory but I feel like the author would try to atleast have yeonjo follow through atleast attempted assassination to honor some of Yeonjo's feelings about revenge because suddenly forgetting or throwing the revenge plan that was a vital part of the story would definitely leave a bad taste
I think you're onto something though, maybe he'll go do the plan and when yeonjo thinks he succeeded or failed he'll try to kill himself, heeryang may save him or the other creepy dude who likes him
The one thing though is that it's still part 1 and seeing as we are already aodund 70+ chapters, there definitely has more to the story if we we'll have part 2 with similar ish chapter count and maybe part 3 also if the author has more to the plot that we don't know that's why I was seriously shocked when I noticed the openings still has it in part 1 when its been over 60 chapters already, meaning the story is far from ending
Atleast we'll have it ongoing for a couple more years
I can't bear to see the betrayal happen