So, just finished the webtoon and I don't know if I missed something:
In chapter 62, who was the person calling them in the last two panel? Each other?
Also, at the end Yuu's sister becomes a teacher?

Also, don't you think like the second season was rush and should have explain more things?
Felt like Pyon throw us a bunch of characters but leave them after saying what their problems where. The blond girl just annoy until Yuu told her about his disability and she realise (at least, my opinion) that she didn't know him.