|“||Come out, Prushka. It's medicine time.||”|
Gueira wears a black whistle and a heavy black cloak that hides his body features. His mask has the pattern of a right angle leading to a circle.
At some point in the past, Gueira tried to treat Prushka after she had been subjected to the curse of the Abyss and as a result had suffered severe physical and mental trauma. He considered the possibility of simply killing her, as she was currently of no use and was only suffering, until Bondrewd himself approached her.
After Prushka got better he was in charge of taking care of her while Bondrewd was away.
Ido Front Arc
Gueira has vast medical knowledge, as shown when he diagnosed Prushka's injuries.
- Gueira is the only Umbra Hand with his name revealed in the main story. Names of other Umbra Hands have been revealed outside the main story by Akihito Tsukushi via Twitter.
- Gueira gifted Prushka the hat she is wearing. Whether or not it was done on Bondrewd's orders is unknown.
- Gueira sounds sleazy and young, almost like an elder brother. Because Gueira is in charge of taking care of Prushka, she imitates him.
|Riko's Party||Riko • Reg • Nanachi • Prushka • Meinya|
|Belchero Orphanage||Belchero • Jiruo • Nat • Shiggy • Kiyui|
|Orth||Hablog • Laffi • Torka • Menae & Sherumi • Mio|
|Seeker Camp||Ozen • Marulk • Simred • Zapo • Yelme|
|Ido Front||Bondrewd • Gueira|
|Ilblu||Wazukyan • Belaf • Juroimoh • Vueko • Moogie • Majikaja • Maaa • Mitty • Poriyon • Mepopohon • Embellith • Shurekaka|
|The Abyss||Lyza • Srajo • Wakuna • Irumyuui • Ajapoka• Faputa • Gaburoon|
|Unnamed Characters||Minor Characters|