In Episode 17 of Season 2 No Club Room, when Ui is sick, she wakes up and looks at the lyrics Yui wrote. I am watching the English-dubbed version and on the top of the paper the song is titled "U and I".
English-wise, this looks like Ui's name if written in Romaji and it makes sense given that Yui wrote it when she was caring for Ui, a time in Yui's life where she doesn't have Ui looking after her like she usually does.
So I am wondering, in the Japanese version, is this song supposed to just be Ui's name?