#J, 26, 24 bytes

-2 bytes thanks to FrownyFrog

(;(,.i.,])&.>i.7)-.\:~"1

• (;(,.i.,])&.>i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!

##Original

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((#~<:/"1)>,{;~i.7)-./:~"1

J, 26, 24 bytes

-2 bytes thanks to FrownyFrog

(;(,.i.,])&.>i.7)-.\:~"1

• (;(,.i.,])&.>i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!

Original

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((#~<:/"1)>,{;~i.7)-./:~"1

#J, 26 bytes

((#~<:/"1),>{;~i.7)-./:~"1

• ((#~<:/"1),>{;~i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!

#J, 26, 24 bytes

-2 bytes thanks to FrownyFrog

(;(,.i.,])&.>i.7)-.\:~"1

• (;(,.i.,])&.>i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!

##Original

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((#~<:/"1)>,{;~i.7)-./:~"1

#J, 32 bytes

((#~<:/"1)@,/@(,"0/~)i.7)-./:~"1

• ((#~<:/"1)@,/@(,"0/~)i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!

#J, 26 bytes

((#~<:/"1),>{;~i.7)-./:~"1

• ((#~<:/"1),>{;~i.7) calculates the full set (this part could be golfed further, I believe. And please do if you see how...)
• -. is "set minus"
• /:~"1 orders each of the inputs

Try it online!