Talk:Hayasui/@comment-27824757-20150812193840/@comment-89.156.46.170-20150812222819

This is most likely consumable (you can buy it in the shop and they give you several as reward instead of just one) so it will probably disappear either used in an expedition or in a sortie.

In any case, I'm pretty sure if used the right way, this item will disappear. However, I have no idea what it does...