__Hardness:__ 5.5

A reserved, quiet gem who mainly does patrol duty with their partner, Benito.

Neptunite has a very sharp tongue and believes that people should face the truth head-on, regardless of how it makes them feel. Other Gems comment that Nepti is also very difficult to read in terms of both their mood and combat movements. New Morganite even remarks that not knowing what Neptunite is saying is part of their charm.


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.

__Height:__ 157 cm

[Twitter](https://twitter.com/tanezakiatsumi) | [Actress Profile (Haikyo)](https://haikyo.co.jp/profile/profile.php?ActorID=12765)

Atsumi Tanezaki is a Japanese voice actress who is formerly affiliated with the Toritori Office, and is now represented by Haikyo.

In an interview with Repotama, Atsumi revealed that she became interested in doing voice acting after watching the anime series [Sailor Moon](https://anilist.co/anime/530/Bishoujo-Senshi-Sailor-Moon). She explained that her acting in the episode was so impactful that it encouraged her to pursue a career in voice acting. She began to study voice acting at a training school after graduating from high school in her home prefecture, Oita, using funds she had gathered from several part-time jobs. 

In the interview, she also states that her favorite voice actresses are [Miyuki Sawashiro](https://anilist.co/staff/95099/Miyuki-Sawashiro) and [Mayumi Tanaka](https://anilist.co/staff/95075/Mayumi-Tanaka), and as a child, she attended a [Junko Iwao](https://anilist.co/staff/95289/Junko-Iwao) concert, where she had the opportunity to talk to Iwao. Upon expressing her desire to become a voice actress at a fan event, Iwao responded stating that she looked forward to being able to work with her.

On October 2nd, 2023, she announced her marriage to fellow voice actor [Yuu Miyazaki](https://anilist.co/staff/127155).

**Non-anime roles:**
- Femirins - Houkai Gakuen (GGZ) (VG)
- Yoru Azuma - Hatsuyuki Sakura (VG)
- Hanako Tanaka - Tsujidou-san no Jun'ai Road (VG)
- Nagi Kodachi - Daitoshokan no Hitsujikai (VG)
- Masaki Gaillard - Amairo * Islenauts (VG)
- Anzu Takakura - Clover Day's (VG)
- Ichika Yuunagi - AstralAir no Shiroki Towa (VG)
- Sora Ousaka - Hoshi Ori Yume Mirai (VG)
- Nene Ayachi - Sanoba Witch (VG)
- Gretel - Kangokutou Mary Skelter (VG)
- Sora Niimi - 9-Nine (VG)
- Ayase Mitsukasa - RIDDLE JOKER (VG)
- Amleth - Memento Mori (VG)
- Sin - Goddess of Victory: Nikke (VG)
- Black Pearl Cookie - Cookie Run: Kingdom (VG)
- Vikala - Granblue Fantasy (VG)
- Seia Yurizono - Blue Archive (VG)
- Anby Demara - Zenless Zone Zero (VG)

[Twitter](https://twitter.com/carlimosier)

An American voice actress and singer who has worked for ADV Films, Funimation, and Seraphim Digital/Sentai Filmworks. She has been married to Dustin Faigen since April 19, 2008.

The Gems fight against the Lunarians, beings who attack them and use their shattered bodies as decorations. Each Gem is assigned a role, and Phos, the youngest, is assigned to create an encyclopedia of natural history.
 
Note: A promotional video that was released through YouTube in commemoration of the publication of the manga's first volume. 
(Source: HIDIVE)