I really wanted to immerse myself in the spirit of classic action movies from the 80s and 90s while still keeping the storytelling in the spirit of anime. I always try to push beyond my own limits. For now this is technically the most complex project I have ever created. In terms of the overall plot I believe the scenario could even compete with Requiem.
If you are not into hentai you can simply play the Itch version because I poured my whole heart into the story. I also did the same for the hentai scenes where I tried animating 2D scenes for the very first time.
The shark girl was chosen because her lore fits the scenario perfectly and blends seamlessly into the story. The main character is clearly much more restrained and tougher, without going overboard of course, especially compared to Ryu. (And yes I did see your comment under Requiem. :) )