Just beware that this story has a lot of trigger warnings, though I won't list it down since it would possibly spoil the story
“What I really want...is to feel the warmth of the people who should be closest to me"
This one-volume manga is such a quick, but definitely not an easy read. Dark, emotional and distressing, it deals with a lot of heavy, messed up topic. Yes, this story is short but definitely a messed up one, And that depressing and tragic vibe has a such great impact, atleast to me. I didn't even realize that this little story can cause a massive heartbreak until I started it.
The story started out where you'll see the end of Ian's story at the prologue and you'll get to backtrack his unfortunate life leading to that moment in the succeeding chapters. Not Simple, a very befitting title, and you'll definitely know once you finish this story. In my opinion, 14 short chapters are enough content for this story to unfold. It's more impactful to me that way.
"Your life is unbelievable"
This line from Jim is the most accurate description of this manga. I don't think recommending this to everyone is an appropriate thing to do but please give it a try. Just don't forget that this has distressing topics and you should read at your own discretion.
ALSO, the art might not be for everyone and personally, it took me half the story to get used to the art style. Just so you know.