It's short, but very impactful. Both characters are very well fleshed out and, despite being a one-volume manga, it's easy to care about them. Their dynamics are really touching at times while really fun at some moments too and the story focuses a lot on their bond and how they can help each other but, even though it is a BL, I think it can be enjoyed even by people who typically don't like romance.
The story is very well written and, while it deals with a lot of hard, dark topics such as suicide or bullying, it keeps a hopeful tone and doesn't just do drama for the sake of drama. It DOES have sad, tragic moments, and might not be a good manga to read if you're in a bad mental place at the moment, but the overall message is more touching and hopeful than sad.
All in all, a beautifully written manga with gorgeous art that I would recommend to pretty much anyone (unless you really can't handle reading about topics like suicide idealization or bullying), even those who don't really like BL. It really stands out from other mangas, both in the BL genre and overall.
