That was a very touching and even heartwarming moment between these two. Seeing how Shizuku, and even Ruri, have grown and decided to move forward.
Whether directly or not, none of this would have happened if not for Kaori. It's amazingly bittersweet how especially in her condition, she shone a brilliant light over the life of so many, and it's oddly satisfying to see her "work" bear fruit.
This is kinda me projecting personal feelings unto the work, but I think that now, going forward, I want to see Shizuku open up and confess to Kaori, and try to treasure every moment with her. I want to see her acknowledge how she pretty much turned her life around, and make sure to always remember and cherish her and let her know that she always will.
I also want Kaori to fucking live but that's besides the point. This chapter has been wonderful, and I am anxiously looking forward to the two's alone time.