__Hardness:__ 3

Antarcticite is one of the Gems who mainly does patrol duty and some other work specifically in winter. Due to their gem characteristic, they 'sleep' in liquid form during above room-temperature, and re-crystallize when the temperature drops. The colder the temperature, the harder they become.
A perfectionist and quite formal (as well as somewhat apathetic), but also spoiled towards Adamant-sensei. They love to hug them, but are embarrassed when anyone finds out.

Antarc is very blunt, and judgmental, but deep down is emotional and kind. But, after hearing Phos' story, they let them become their partner, though they are not used to working in a group.

In a world inhabited by crystalline lifeforms called The Lustrous, every unique gem must fight for their way of life against the threat of lunarians who would turn them into decorations. Phosphophyllite, the most fragile and brittle of gems, longs to join the battle. When Phos is instead assigned to complete a natural history of their world, it sounds like a dull and pointless task. But this new job brings Phos into contact with Cinnabar, a gem forced to live in isolation. Can Phos’s seemingly mundane assignment lead both Phos and Cinnabar to the fulfillment they desire?
 
(Source: Kodansha USA)
 
Note: Nominated for the 8th Manga Taisho in 2015.

In the mysterious future, crystalline organisms called Gems inhabit a world that has been destroyed by six meteors. Each Gem is assigned a role in order to fight against the Lunarians, a species who attacks them in order to shatter their bodies and use them as decorations. 
 
Phosphophyllite, also known as Phos, is a young and fragile Gem who dreams of helping their friends in the war effort. Instead, they are told to compile an encyclopedia because of their delicate condition. After begrudgingly embarking on this task, Phos meets Cinnabar, an intelligent gem who has been relegated to patrolling the isolated island at night because of the corrosive poison their body creates. After seeing how unhappy Cinnabar is, Phos decides to find a role that both of the rejected Gems can enjoy. Houseki no Kuni follows Phos' efforts to be useful and protect their fellow Gems.

**[Profile (Across Entertainment)](http://across-ent.com/talent/women/mariya_ise.html) | [Twitter](https://twitter.com/Ma_ri_ya_i) | [Instagram](https://www.instagram.com/mariya_ise/) | [Blog](https://ameblo.jp/mariya-i/)**

**Mariya Ise** is a Japanese actress and singer affiliated with Across Entertainment.

**Non-Anime Roles:**
- Camellya - Wuthering Waves (VG)
- Magallan - Arknights (VG)
- Leo - Epic Seven (VG)
- Wendy - Path to Nowhere (VG)
- Raeon - Echocalypse: The Scarlet Covenant (VG)
- Reo Kamiyama - Persona 5: The Phantom X (VG)
- Farrah - Granblue Fantasy (VG)
- Helel ben Shalem - Granblue Fantasy Versus: Rising (VG)
- Crazy Taxi - 404 Game RE: SET (VG)
- Lilyiro - Soul Tide (VG)
- Lupina - Guardian Tales (VG)
- Kudan - The Caligula Effect 2 (VG)
- Tiger Lily Cookie & Sherbet Cookie - Cookie Run: Kingdom (VG)

[Instagram](https://www.instagram.com/iamalyssam/) 

Alyssa is an English voice actor who attended the University of Houston with a BFA in acting. In her free time, she loves to do gymnastics, dance, and play with her dog, Bud.

(Source: University of Houston website)