Just finished the update and I have comments. Spoilers ahead for the current update, obviously. Read at your own risk.
Firstly, stellar work, as always. The writing is great quality, as per usual, despite the odd typo or grammatical error. The progression of Diego's story line is coming along nicely and only getting more complex as we near the end. If I had any complaints to make regarding the writing, they would be about Kyrex's involvement in this update.
I can't say I'm really a fan of this whole "redemption/justification of Kyrex" thing that's getting foreshadowed, but, like, I get it, more or less. I don't like the idea of trying to justify things like what Kyrex did to Diego in any way or to any extent, but in all fairness, it's understandable why this sort of thing would be included in the story - Diego's story would lose a lot of its meaning if he doesn't get some proper closure regarding Kyrex - and Tai at least states that having a reason or reasons for what happened doesn't justify them or exonerate Kyrex of culpability for his actions (even if it feels like Tai sympathizes with the jack-wagon, what with that "two sides to every story" stuff and the whole "it was more complicated than I realized" thing). It's at least clear that the story isn't gonna try and say that Kyrex's actions weren't completely awful or even that he deserves to be forgiven because he had his own issues at the time, which is good; hurting another person the way Kyrex hurt Diego is beyond any kind of apology or redemption, especially with the way he'd act whenever he showed up before this update. All that said, the actual story and character arcs haven't come to any conclusion as of yet, so I'll withhold any actual judgement until they have.
Graphically, I've only got a couple things to bring up. First and foremost, I've been noticing an inconsistency with how many fingers Diego has; his sprite looks like he has five fingers (counting the thumb) and some of the CGs show him with five fingers, but then other CGs will only give him four fingers. For visual, compare Diego's hands in the "Sleeping on Couch" and "Diego Naked" CGs/Special Scenes to his hands in the CGs for "Diego vs Russel", "Diego Day 7 Good Ending" and both parts of "Diego Sex Scene I"; Diego has five fingers in the first two examples, but only four in the others. I don't personally care one way or the other as far as the number of fingers, and I'm even fine if the number of fingers varies from character to character, as long as it's kept consistent how many fingers a character has; otherwise, it feels kinda jarring and it pulls me out of the immersion, at least for me.
Other than the fingers issue, I noticed some errors in a couple of the backgrounds, specifically the "Tai's House Basement" and "Combat Tournament" backgrounds (see images below). In both backgrounds, there are a couple places on the ropes (rungs?) of the fighting rings where the coloration is wrong. Just thought I'd point them out. I circled the areas I noticed an error for each background.
Other than that, I've nothing really to mention. The only thing I could possibly think of is that it's a bit of a hassle not being able to use the standard ren'py hotkeys ("F" to change display, "S" to take a screenshot, etc.) in the game, but that's genuinely just a nitpick; it'd be nice to have, but it doesn't have any effect on my opinion of the game and I honestly enjoy it, regardless. I'm really impressed with the quality of the game so far, in all honesty, and all this build up to the ending of Diego's route in the next couple of updates is really getting me hyped for whatever's gonna happen. Keep up the good work!!
(P.S. Sorry for leaving these sorts of one-page-essay reviews; these can't be fun to read through, but I was never good at being concise with my writings... ^^' )