I wonder if Sakuya is setting up a moral test for the koakuma here. Will she admit to not knowing how it got all cleaned up, or will she take credit for Sakuya's work?
mr.bananas said: Nope, judging by the previous strip Sakuya did it after koa fell asleep
Check the two previous strips, not just the last one. Koakuma cleaned up about half the mess between post #1144796 and post #1145755; Sakuya came by to find her asleep, but Koa's sleep-talking caused Sakuya to feel sorry for her and finish the job between post #1145755 and this one.
Sakuya helped out Koakuma after seeing that she tried at least to clean up and Patchy being impressed and happy about it.
This comic series has alot going on at the same time.
I'm sorry to have worried you.Lady Patchouli!!Oh, I'm sorry. Did I wake you up?Eh...?...ah....... Is your physical condition all better...?Wow...amazing.Lady Patchouli?Book 69: A Library Out of a DreamFrom the artist's Pixiv page.N-no, it's fine...Yes, I'm fine now.Never mind that... you cleaned up the room for me, didn't you?