Hakobe Ice is an anime-only natural Magic Item.
The Hakobe Ice is a very famous and very rare type of ice only found, as it's name suggests, in Mt. Hakobe. The ice contains numerous magical characteristics, as it can never be melted. Furthermore, it's nearly invincible to sharp objects, can act as a high-grade skin moisturizer, gives a great flavor to cooked food. It can also regain one's energy and cure minor illnesses such as motion-sickness. The only known way of cutting it out is by the use of a Magic-induced pen.