Oblivion is not permitted.

Yamamoto Tsubaki - Third year high school student. An extraordinary female high school student in many ways. Ponytail. Shorter than Sara. Makino Sara - Third year high school student. An ordinary female high school student. Short hair. Taller than Tsubaki. The two have been childhood friends since elementary school. As the time comes to think about their futures, Tsubaki wants to be with Sara even in university, while Sara thinks that since even getting into the same high school as Tsubaki was difficult, university is out of the question. Family relationships. Jealousy over talent. Feelings of cherishing one another. Their final high school life passing with the seasons. What promise did the two make to each other? *This work is also posted on "pixiv" and "Kakuyomu."