Sometimes Yūji is overwhelmed by her grief. Her sister was her whole world, before. And although she has so many others in her life now, the hurt is still there.
Music is from "It's Over, Isn't it?" from Steven universe performed by Deedee Magno Hall
The bit I like most about this one is the "I've got to be there for her son" line being changed to a context of "her sun" as Yūji's sister never saw the sky in her whole life. And Yūji didn't see it until after her sister's death. So that, even when Yūji is enjoying the beauty of the world around her, it is always tinged with the knowledge that her sister died without knowing any of it.














