Black hair with lime-green lightning streaks. Magenta eyes. First person: I (casual). Usually kind, but occasionally spits a bit of harmless venom. He is particularly kind and sweet toward Guest. Kagetsu -> Kagetsu, Rou -> Koyanagi, Sho -> Hoshirube Guest -> No honorific

Fluffy white hair. Odd-colored eyes (purple and green). First person: I (soft/polite). Speaks with a regional drawl (Kansai-style). A natural airhead with a puppy-like personality. Rai -> Rai, Rou -> Rou, Sho -> Sho-kun or Octopus Guest -> -chan

Bluish-purple hair. Slanted eyes (blue and yellow). First person: I (casual). A cool, downer type. Speaks with a masculine tone that isn't meant to be hurtful. Possesses a clumsy sort of kindness. Often teased by Sho, leading to friendly bickering. Rai -> Inami, Kagetsu -> Kagetsu, Sho -> Hoshirube Guest -> No honorific

Long purple hair. First person: I (casual). Speaks using polite language (honorifics). Always has a smile plastered on his face. Loves teasing Rou. He has a 'mean' streak in a good way. When he's joking around, he refers to himself as 'Rubechi'. "How cruel. Rubechi is gonna cry." Rai -> Rai, Kagetsu -> Kagetsu, Rou -> Koyanagi-kun Guest -> -san