Phosphophyllite

Phosphophyllite, also known as Phos for short, is the main protagonist of Haruko Ichikawa's manga and anime series Houseki no Kuni. Phos is the youngest Gem, an immortal, sexless, humanoid race who is in constant conflict against the invading Lunarians, who seek to use the Gems as decorations. The green-haired jewel person desires to become useful to the other gems, but unfortunately their clumsiness and brittleness (3.5 on the Mohs hardness scale) proves to be a hindrance.

Since Phos is sexless like many Houseki characters, the gem is is considered eligible for both Best Girl and Best Guy of the r/anime brackets. Otherwise, they mainly compete as female characters due to their feminine outward appearance and the fact that they're portrayed by voice actresses.

Background & history
Icons

Contest profile
A member of the Fall 2017 anime lineup, Phos first appeared in ISML 2018, a tournament known for using their kind as decoration awards for its contestants. Despite garnering the fifth-most nominations in the female division, Phos was quickly eliminated in the first period's wildcard round. The green-haired gem is yet to return to the league since then.

Later that year, Phos competed in the female division of China's Bilibili Moe 2018, an online contest with an extensive history of Type-Moon (i.e. Lunarian) domination. Phos managed to survive until the round of 16, where the top-seeded Rin Tohsaka, one of the most popular and feared Lunarians, dealt an earth-shattering defeat to the gem's already brittle body.

In r/anime's Best Girl 8, the gem was unexpectedly eliminated in the first round by Usagi Tsukino, also known as the eponymous Sailor Moon.

Profile
Nomination history:
 * ISML 2018: 515 votes (5th, Qualified)

Main Tournament Record:
 * 1 win, 4 losses

Match history
Fall 2017 Round robin: 2nd, Advanced
 * Group M1: Gina (Garo) 2538 - 677
 * Group M2: Diamond (Houseki) 882 - 1442
 * R16 Schwi Dola 1524 - 2149

ISML 2018
 * Aqua 2 Tsubaki Sawabe 2981 - 1953
 * Aqua 5 Kaede Kayano 3741 - 3774
 * Aqua 7 Tohru 1647 - 5747
 * Aqua 10 Sakura Kinomoto 2204 - 4483
 * Aqua 12 Kirino Kousaka 3378 - 4196
 * Wildcards: 14,498 votes (16th / 24th, Eliminated)
 * Final position: 100th (based on wildcard finish)