THIS IS JUST A FIX OF THE 9030 AND 9040 MODEL, YOU STILL NEED TO DOWNLOAD THE ORIGINAL MOD FROM DEADSPACE66 FOR THE 9000 AND LEGS FILES.

Disclaimer:

SO, i'm not a modder at all, and as i said to Deadspace66 i love his work, especially with this mod, so much i didn't wanted to play without it cause of the transparency issues. So, i texted him and he's aware of the problem, but didn't fix it in almost a week now. Maybe he's just busy, but i want to use the mod so with the help of Dropoff - a user/modder of the Discord i joined - in the last days i learned a bit about mods for Sekiro and today i decided to try and do it myself again and i succeeded.
As i esplained to Deadspace66, and i'm sure he's very aware of how it works, Sekiro has 3 main models that usually gets modded, that in game are defined by codes:
9030 is Sekiro at start
9000 is Sekiro with Kusabimaru
9040 is Sekiro with Mortal Blade
And that's where the problem was, the model 9030 and 9040 had no Alpha channel and no transparency, so the game had a weird "black area" under the scarf where it should be transparent and on the edges of the coat, something extremely visible especially in cutscenes, ecc.

I'm not trying to take credit for the mod at all, it's not my work, i just added the transparency level and to prove i'm doing it in good faith i'm just uploading the bd_9030 and 9040 making people still need his mod, cause otherwise after Kusabimaru and before Mortal blade Sekiro won't be modded. He's not replying to me in days even though he's active on Nexus so if someone else, like me, once noticed the problem can't unsee it and wants a fix here it is, again, it's done completely by Deadspace66.

NB: I think 9000 is fine, but if you'll notice some bad details i can fix it too. :)
NB2: In the screenshots i pointed out the scarf cause very visible, but you can look yourself how it's black on the coat as well. :)