I am Byun Baekhyun and I solely promise I won't forget

A promise that sounded it were to be broken in few years time. That is Baekhyun's promise when he was 16 years old, a third year highschool student. But its been a decade since he has written, told and swore to his heart that promise. A promise that was bounded by love of two highschool students. But just like they say, promises are meant to be broken, aren't it? 

Thanks to Full of Luck Graphic Shop and ---namu for the wonderful poster