Professor Layton and the Curious Village (JP Friendly Ban) font spacing issue

[InkySpectre]

Hi every!

I'm trying to localize the japanese version of the 1st Prof. Layton game (mainly because of unlocked wi-fi puzzles, the lack of censorship (some puzzles were altered or removed from international versions) and more accessible video format (.mods instead of .vx).

The thing is, font spacing works unusual comparing to the other nds-games. It is hard-coded in ARM9.bin. Having inspected the font-related functions in ghidra disassembler, I've found the probable variable:

After changing this, the spacing between full-width glyphs indeed changed:

This spacing changed for all the text except event dialogs (those texts that are stored in etext folder):

I've tried to search the same function, and even found one just next to this one, 0xCEFC. Unfortunatelly it hasn't affected the game at all.

In short, I need help with finding the variable (which is possibly also 0x0c) for event text. I even tried to edit the NFTR-file or use half-width characters, but it seems only two-byte letters could be read, and the editing of NFTR values doesn't affect the game either.

Any help would be very appreciated, thanks!