Here's my take after reading the one-shot Shiawase wa Kizu no Katachi of Éclair: Anata ni Hibiku Yuri Anthology by Nio Nakatani.
After reading and catching up to the latest chapter of Yagakimi, I felt I needed to read more or something similar to it, and luckily I was able to read this one shot of Nio-san which also happens to be a part of a Yuri Anthology together with 16 other Yuri one-shots.
Shiawase wa Kizu no Katachi or Happiness in a shape of a scar is such a beautiful story of Torii a high school student that despises Kai a timid piano genius.
Since this is just a one-shot that you can read in just a few minutes I will not add much detail other than that above.
What I can say is that the art is at par with Yagakimi which is fresh and light and the story is more of a reminder that love in many cases hides through hate/annoyance.
I would give this one-shot a 9/10 <3