Honorifics: Deuce

Deuce is strict with his use of honorifics as a part of his efforts to become an honor student and compensate for his years of rudeness pre-NRC when he would do things like not use “-sensei” with his teachers at school.

He refers to Riddle as “Housewarden Rosehearts” and sometimes as “kashira,” which can mean “boss” or “gangleader.”

Deuce refers to Riddle just once as “Rosehearts-senpai” in Cater’s dream of Book 7 where Cater has become Housewarden, but he was speaking to a dream version of Riddle at the time, not the real Riddle.

Deuce refers to Riddle as “Rosehearts-san” during Riddle’s dream of Book 7, as Riddle is not an NRC student.

Deuce also stops himself from referring to Cater as “Housewarden Diamond” at the conclusion of Cater’s dream, self correcting to “Diamond-senpai.”

He refers to Trey and Cater as “Clover-senpai” and “Diamond-senpai” consistently, while Ace is “Ace.”

Deuce also does not use honorifics with any of the other first-year students, though he and Ace have added “-kun” to one another’s names at least once when teasing the prefect.

Deuce refers to the second-year students as “last-name-senpai,” calling both twins “Leech-senpai” (this comes up in Floyd’s birthday vignette where Deuce makes a coupon for Floyd for his birthday, and Floyd points out that Jade could redeem it, too, as Deuce has addressed it to “Leech-senpai,” which applies to both of them.)

Exception: Deuce will usually refer to Ruggie as “Bucchi-senpai,” but there is a one-time exception during Book 2 when he refers to him just as “Ruggie,” possibly out of panic, as he just watched Leona nearly kill him. (This has not been corrected to “Bucchi-senpai” as of this post, so it may have been intentional rather than a proofreading oversight.)

Exception: In events and vignettes Deuce will refer to Azul as “Ashengrotto-senpai,” but he has yet to call Azul anything but “Azul” in the main story (the same applies to both Ace and Jack, with none of the three first-years from Book 3 using honorifics with Azul in that storyline).

Exception: Deuce refers to Jamil as “Viper-senpai” as usual during New Year’s, until Jamil gifts him with an egg sandwich. After eating, Deuce refers to him just once as “Jamil-senpai.”

Deuce refers to all third-year students as “last-name-senpai” with no exceptions.