Hi
I need help, I couldn't figure out the compression used for the Phantasy Star IV scripts

This is an example of the compression used

Compressed:
Are yo{FF},u a hunter?{/N}{EE}{FE}h{C0}{C7}{F3}{F7}to ex{E9}{87}{E1}mina{F9}{/n}t{EB} m{E3}"ons{EE}s?{FF}Thank{87}{F0}{D4}v{F0}y{E7}uch{7F}"!{/n}I feel{F3} sa{/n}d{F4}r now.{D4}{F8}JagaN{7C}{B3}{/n}fo{E7}{F2}ssi{80}g{B1}{E4}ce{DC}W{/n}{90}{DC}t's go{E0}g{E0}I{86}{F1}ppen{C0}LQ{94}{4F}{F8}Ib{CA}t{51}A{F7}{79}{72}{B3}o,{6E}{FF}{/n}b 7e{A4}{D0}{C6}A {C7}a{9F}{B8}{F3}{C3}{F0}{4E}b{9B}em{B7}t.{/N}C{7C}I'm{6B}{E1}frigh.%{CE}ned{C3}{50}c{78}f{CC}'t{/n}e{3C}
{D2}{80}b{CD}{5A}a{9D}mF{C0}tre{C7}{B9}pCF{FF}Oh{D6}{51}'{DB}{F8}{90}{D1}omple{C2}dO{A2}{A4}jobLi{F8}I
{A3}{82}a{F9}{F3}P{F8}O{8D}P{/n}r{/n}O{F8}

The uncompressed text from the ram:
Are you a hunter?{/N}Are you here to exterminate{/n}the monsters?{FF}Thank you very much!{/n}I feel much safer now.{FF}Thank you again{/n}for you assistance.{FF}What's going to happen now?{FF}{FA}{DA}C{FA}zB{FA}KAAbout a month ago, monsters{/n}began to appear in the basement.{/N}I'm so frightened, I can't{/n}even think about my research!{FF}Oh, you've completed the job!{/n}Thank you so much!{FF}Thank you again for your{/n}assistance.{FF}What's going to happen now?{FF}{FA}{DA}D{FA}zC{FA}KB{FA}HAYou're the hunter commissioned{/n}by the principal?{/N}A kid like you?!{/N}Are you going to be able to{/n}handle it?{FF}Wow, hey gorgeous!{/N}

I have got the above result after building a table, I have used /n to refer to new ling code, and /N to new message box code.

I have figured out that some of the codes refer to the previous characters, the first {EE}{FE} refers to "Are you " like that
FF-EE=11 -> decimal 17, if you return back 17 characters from the uncompressed text you will find it.

and I have also found that by changing the last hex from {FE} the number of bytes will change like below
If I change it to {F9} it will bring only 3 characters "Are", and if I change it to {FF} it will bring 9 characters "Are you a" that means it uses 3bits for the length

from the above I knew it is some sort of LZSS compression, but there are other codes I couldn't find any meaning for them like the "{FF}," that comes at the beginning of the compressed text

I don't know how could I make reverse engineering and analyze the code responsible for the decompression, so I just try to compare the code with the known compression types.

Dude. Line breaks.

Press the Edit Button above your post and insert line breaks in your text where appropriate. Preview the page until you get it right and then click Save.

I gave an example.

Get a Genesis emulator with a tracer, set a breakpoint to the text location in the ROM, run the program till it starts loading text, then start stepping through code.