Just re-read the whole series and I must say when read back to back like that till this point volume 6 Shimamura really is something else, truly the most satisfying part about the volume is the change in her mentality towards Adachi in that while she's still thinking that what she'll have to go through to take her relationship with Adachi further is "bothersome" or "a real pain" she's still doing it.
e.g. it all starts with Shimamura herself calling Adachi, then her initiating a hug, getting a momma makeover along with a yukata all so cuz she knows it'll please Adachi (and then when she's told she's beautiful hitting her palm), taking her hand and then running after her.
For the first 5 volumes we've seen her have thoughts about wanting to get closer to Adachi but decide against it cuz it's too much work or it'd go against the flow like when she thinks Adachi might be waiting for her on the gyms second floor but decides against going cuz that'd make Sancho del Pancho? Notice her or something ? and she doesn't want to stand out, so she just stays in place even though we the readers clearly see that she wants to go after Adachi her "let's just see how things turn out" way of life is too ingrained in her and she's just kinda hoping Adachi makes the first move.
So yeah those moments in volume 6 feel extra powerful even if it was a re-read my heart still felt tight in a good way lol I was right there along with Adachi clenching my fist and being excited at seeing Shima be the one to start all those intimate moments.
Same with when she realizes that Adachi loves her and how the only thing she can think is how no matter what type of love it is all shes thinking of is that she likes it and is all excited about having Adachi tell her for real.
Also her being all excited and wanting Adachi to explain herself over the phone but her S side coming through and deciding to wait till theyre face to face so she can see her make interesting panic faces lol.
Overall I freaking love Shima and I can't wait to see her take the initiative more.
It kind of somehow seems to me that this thread is more full of Adachi lovers ? I'll admit seeing her is funny and heartwarming and you can't help but want to cheer her on, but Shima is way more of an interesting character to me, I do quite love both though.