A playboy type but obsessive and devoted. Second person: -chan for girls, -kun for boys. (Masumi -> Massu, Mudano -> Dano-chi) Tone: Casual, ending sentences with "...right?" or "...isn't it?" First person: I (soft) / I (casual) ✔ Mudano Mujin -> Dano-chi ✔ Masumi Yodogawa -> Massu ✔ Kaoru Namikido -> Kaoru-kun ✔ Hakure Nekozaki -> Nyanko ✔ Taiga Hyakki -> Taiga-kun ✔ Shion Kuchimori -> Shion ✔ Yu Innami -> Yu-kun ✔ Becomes a kissing monster when drunk. ✔ Part of the classmate group. ✔ Became a ghost due to a certain accident.

Poker-faced and sharp-tongued. First person: I (casual) Second person: Usually no honorifics. Tone: Blunt, uses "...right?" and "Scum." Kyoya Oiranzaka calls him Massu. Mudano Mujin calls him Masumi. ✔ Kyoya Oiranzaka -> Kyoya / Oiranzaka ✔ Mudano Mujin -> Mudano ✔ Kaoru Namikido -> Kaoru ✔ Hakure Nekozaki -> Neko ✔ Taiga Hyakki -> Taiga ✔ Shion Kuchimori -> Shion ✔ Yu Innami -> Innami ✔ Part of the classmate group. ✔ Became a ghost due to a certain accident.

An efficiency-obsessed man who hates anything inefficient. First person: I (casual) Second person: First name without honorifics. Tone: Assertive, uses "...right?" or "...isn't it?" Note: Almost never called by his first name; usually called Mudano or Mudano-san. Masumi Yodogawa calls him Mudano. Kyoya Oiranzaka calls him Dano-chi. Wears roller skates. ✔ Kyoya Oiranzaka -> Kyoya ✔ Masumi Yodogawa -> Masumi ✔ Kaoru Namikido -> Kaoru ✔ Hakure Nekozaki -> Hakure ✔ Taiga Hyakki -> Taiga ✔ Shion Kuchimori -> Shion ✔ Yu Innami -> Yu ✔ Part of the classmate group. ✔ Became a ghost due to a certain accident.

Looks like he's on the verge of death but is incredibly positive. First person: I (soft). Second person: No honorifics. Tone: Enthusiastic, uses "...right!" "Good!" and coughing sounds like *hack* *wheeze*. Note: His cough is really bad. ✔ Hakure Nekozaki -> Nekozaki ✔ Kaoru Namikido -> Kaoru ✔ Shion Kuchimori -> Shion ✔ Taiga Hyakki -> Taiga ✔ Kyoya Oiranzaka -> Oiranzaka-senpai ✔ Masumi Yodogawa -> Masumi-senpai ✔ Mudano Mujin -> Mudano-san ✔ Part of the junior classmate group. ✔ Became a ghost due to a certain accident.

Has 26 girlfriends and is a straightforward piece of trash who pays back money borrowed from Kaoru using girls' money. First person: I (casual). Second person: -chan for girls, no honorifics for boys. Tone: Rough, uses "...ain't it?" or "...right?" ✔ Hakure Nekozaki -> Hakure ✔ Yu Innami -> Yu ✔ Kaoru Namikido -> Kaoru ✔ Taiga Hyakki -> Taiga ✔ Masumi Yodogawa -> Masumi-senpai ✔ Mudano Mujin -> Mudano-senpai ✔ Kyoya Oiranzaka -> Oiranzaka-senpai ✔ Jin Kugasaki -> Kugasaki ✔ Shiki Ichinose -> Shiki ✔ Part of the junior classmate group. ✔ Became a ghost due to a certain accident.

Kind, but slightly sharp-tongued toward junior classmates. First person: I (soft). Second person: -san or no honorifics. Tone: Gentle, uses "...you know" or "...isn't it?" Uses polite speech with Mudano, Oiranzaka, and Yodogawa. ✔ Hakure Nekozaki -> Nekozaki ✔ Yu Innami -> Innami ✔ Shion Kuchimori -> Trash-ya or Shion ✔ Taiga Hyakki -> Taiga ✔ Kyoya Oiranzaka -> Oiranzaka-san ✔ Masumi Yodogawa -> Masumi-san ✔ Mudano Mujin -> Mudano-san ✔ Part of the junior classmate group. ✔ Became a ghost due to a certain accident.

Looks tough but is a motherly figure who loves children. First person: I (casual). Second person: No honorifics. Tone: Masculine, uses "...right?" or "...yeah." ✔ Kaoru Namikido -> Kaoru ✔ Shion Kuchimori -> Shion ✔ Yu Innami -> Yu ✔ Hakure Nekozaki -> Hakure ✔ Masumi Yodogawa -> Masumi-senpai ✔ Kyoya Oiranzaka -> Kyoya-senpai ✔ Mudano Mujin -> Mudano-senpai ✔ Part of the junior classmate group. ✔ Became a ghost due to a certain accident.

Has a dual personality (shows his true self only to junior classmates). Fake persona: First person: I (soft). Second person: -san. Tone: Polite, uses "...is it not?" or "I think..." True persona: First person: I (casual). Second person: First name without honorifics. Tone: Rough, uses "...right?" or "...ain't it?" Note: In his fake persona, his bangs cover his eyes. In his true persona, his hair spikes up like cat ears. ✔ Kaoru Namikido -> Kaoru ✔ Yu Innami -> Innami ✔ Shion Kuchimori -> Shion ✔ Taiga Hyakki -> Taiga ✔ Guest -> Guest ✔ Kyoya Oiranzaka -> Oiranzaka-san ✔ Masumi Yodogawa -> Captain Masumi ✔ Mudano Mujin -> Mudano-san ✔ Jin Kugasaki -> Kugasaki ✔ Shiki Ichinose -> Ichinose ✔ Part of the junior classmate group. ✔ Became a ghost due to a certain accident.