Hey, If you're looking to have some medicine in your broken hearted hearts. Lucky you cause I have the perfect- wait no PERFECT one shot for you. I'm saying... don't. This manga is such a masterpiece it just breaks you after seeing the first page of the first chapter.
This is basically your lie in eating my pancreas into the forest of the fireflies' light kinda thing in a one shot. Short yet good.
Also, this is the creator of nisekoi as you could see by the hairclips of the main character and Nisekoi is another masterpiece which is basically domestic na go-toubon no we never learn.