Am I missing something? Why did jun flinch when lucky charm was mentioned?

Uke is known as teacher's "lucky charm" and teacher is basically bad mouthing him.

I’m not sure if I’m remembering correctly but I feel like in the earlier chapters, the professor mentioned that Jun was his lucky charm. So when Jun heard the professor say, “Lucky charm, my ass”, he had meant that instead of being his lucky charm, he was now dragging him into Jun’s mess and bringing misfortune. I think that’s why he flinched. Again, I’m not quite sure though so feel free to correct me ٩(๑❛ᴗ❛๑)۶

You have short memory haha that's the whole story Yeon Woo told

Thank youuu

Yes I think I vaguely remember now thank you so much!!! ヾ(☆▽☆)(づ￣ ³￣)づ

Yes I do lmaooooo goldfish brain XD