Saw the chapter title and got a little sad knowing it was about Anna pretending she was okay with the arrangement and how we would see she misses him. Then we get the panel of her outside of the library door being all sad...and all of the stuff that happened in her house. And then her whole "we can do without a call" just felt so sad.
THEN our boy Wantaro gets her to go outside and she runs into him. The look of happiness on her face when she saw him was delightful. Can't wait to see where this goes.
Ah, I can literally feel the emotional and even some physical discomfort of his sister, who, due to her age, clearly does not wear formal clothes often enough.