Hari to Orange

Needles and Oranges / 針とオレンジ / A Fun Summer Vacation Collection of short stories:

- Needles and Oranges:
The protagonist believes that she and her female lover understand each other despite a language barrier, but realizes she was wrong when her lover disappears one day.

- A Fun Summer Vacation:
A very short story about two friends who go on vacation together and make an unexpected discovery.

(From MangaUpdates)