I believe this is for the shinobi job quest? It is labelled as a quest item even without the quest and therefore cannot be discarded. The thing is any class could pick it up from the chest unknowingly and the player will be stuck with it forever. How is one supposed to know in advance whether to loot that chest or not? And if one channel hops, you can get multiple bottles. Could we change it into a regular item at least so that we can discard it from our backpack?