In the distant future, a new immortal and genderless life form called Gems populate the Earth. The 28 Gems must fight against the Moon Dwellers, who attack them regularly to abduct them and to turn them into decorations. Each Gem is assigned a role, such as a fighter or a medic.

Being only 300 years old, Phosphophyllite is the youngest of the Gems and has no assignment yet. Phos to help to fight the Moon Dwellers, but is too weak and brittle for battle. One day the master of Gems, Adamantine, assigns Phos the task of creating a natural history encyclopedia.

Nominated for the 8th Manga Taisho in 2015.

Two volumes of the author's best oneshots.

Volume 1: Mushi to Uta (Insects and Songs)

1) Star Lover - The odd relationship between a teenage boy and his uncle's "daughter."

2) Violight - A boy wakes up in an unfamiliar land, with only a strange, ethereal young man to accompany him on his journey to safety.

3) The Kusaka Siblings - A baseball player who's just quit the school team due to a shoulder injury and the adorable robot he adopts as his little sister.

4) Mushi to Uta - The story of a young man who builds models of insects for odd clients, and his siblings. Winner of the Shikitaishou award.

5) Secret - A two-page oneshot.

Volume 2: 25-Ji no Vacances (25-Hour Vacation)

1-2) 25-Hour Vacation - Marine biologist Nishi Otome takes time off and reunites with her brother, Kotaro, for the first time in a while.

3) On Pandora - The meeting between a delinquent named Nana and a strange transfer student at Pandora Women’s College, located on one of Saturn's satellites.

4) The Funeral of the Moon - A genius high school student begins living with a lonely man in the isolated snowy mountains of the north.

Note: Mushi to Uta was nominated for the 3rd Manga Taisho in 2010. 25-ji no Vacance was nominated for the 5th Manga Taisho in 2012. Winner of the Tezuka Osamu New Artist Prize (2010).