The Future is in Our Hands

From Shoujo Crusade:
Due to an illness, Yuzuki was forced to forsake her dream, living each day in emptiness. But suddenly, she received a letter. The person who wrote the letter was Ono Arashi, Yuzuki’s schoolmate and one who wishes to become a professional wake boarder. Arashi said this to Yuzuki, "I hope that you will see me succeed", but……
Other than the titled work, there are 4 other works.