Omg this chapter, My heart, what is this feeling(?), every page, it just gives me this strange feeling in my chest, to my shoulder and upper arm down to my stomach and fingers..
It actually exist since like chapter 1. It is kind of not obvious since it is just a manga (maybe artstyle choice etc.) but when you see the consistency between male's and female's neck they drew, it is indeed adam's apple on chapter 1.