Crying Out Love, in the Center of the World Episode 1

Ritsuko discovers an old cassette tape while packing her things to move into a new apartment. She listens to the tape and hears the voice of a frail girl saying Im so afraid of tomorrow that I cant fall asleep. I think Im going to die soon. Soon after Ritsuko leaves a sparse note for her fiance Saku Im going away for a while. Dont worry about me. Ritsuko. ...