I suspect Matsui's story will be bittersweet, but not truly sad or tragic (in the vein of Aoyama's, I mean). That's my hope, anyway—she's so often framed in the light through a window with the curtains billowing about around/behind her, and something about that softness sorta feels like it's coding her as someone with a lighter tone to her tale.
Can't say that's going to be how it plays out, but as far as the stylistic depiction and the mood of the author's artistry handiwork, that's where my head goes. I'm sure it will be heartrending, as clearly her once-wished happy ever after didn't come to pass...but I hope it involves happy memories of that time and of that girl.
Sumi & Haru were as precious as ever, though. Haru being so exciteable and Sumi fully giving into that energy really sells the comfort and ease they have around one another—even outside of Sumi herself remarking upon how quickly and effortlessly the switch when alone together, and how good that makes her feel about where she's at in all of this. I went back to look for another detail, found the letter she'd written to Haru, and almost started crying all over again; I know Kasumi has a ways to go in healing after what she'd gone through, and I don't expect it to happen even in the bounds of this series as it could easily be a lifelong process, if one that ever "finishes" at all. But Haru has given her light and life and hope and a promise to look forward to, and I hope that Matsui gives her and Haru both another peek into the past, another story to compare and contrast against, another link in the chain of relationships like theirs, and maybe even some hope that what they have can stand the test of time, even if stories like Matsui's might be but cherished memories.
And of course the art is just heartbreakingly gorgeous, as it ever is.
Thanks for the work and dedication as always.