This page will cover spirits who had very minor roles or were simply mentioned.
A-F
Anouye
Anouye (アノウエ,Anoue) is one of the four spirits of the ship.[1]
Babloana
The Contradictory Swordsman Babloana (矛盾剣士バブロアナ, Mujun Kenshi Baburoana) is the strongest swordsman among the spirits, with a broken shield in one hand and a broken spear in the other. There are few rumors about Babloana and it's a rare fairy that is hardly ever encountered.[2]
Beulah
Beulah (ビーラ, Bīra) is one of the four spirits of the ship.[1]
Deadman of Lava
The Deadman of Lava (溶岩の死人, Yōgan no Shibito) was mentioned in the "Spirit School Quiz". The question involving this spirit could also be answered by Dēdoirich.[1]
Dēdoirich
Dēdoirich (デードイリッヒ, Dēdoirihhi) was mentioned in the "Spirit School Quiz". The question involving this spirit could also be answered by the Deadman of Lava.[1]
G-L
Gauile
Fairy Dog Gauile (妖精犬ガウイーレ, Yōsei Inu Gauīre) are spirits that resemble foxes or small bears and only appear during the daytime.[2]
Gisla
Gisla (ジスラ, Jisura) is one of the four spirits of the ship.[1]
Idoam
The crater of the Volcanic Spirit Idoam (火山精霊イドアム, Kazan Seirei Idoamu) is used to punish those who are found cheating during the "Spirit School Quiz".[1]
Jijake
The Six-legged Spirit Jijake (六本足の精霊ジジェイク, Roppon'ashi no Seirei Jijeiku) is a six-legged spirit. Jijake is an ancient spirit word that means "not a rumor".[1]
M-R
Meto
Meto (メト, Meto) is one of the four spirits of the ship.[1]