You have to wait years for that... I couldn't wait and I finish the DLC on Winlator
How was the performance? Did it run well?
I did the same and went for the effort of finding a fork with "touch direct mouse" input support. Had to waste a day on figuring out how to build android apks and merge the few changes from multiple branches (since a lot of steps was undocumented). I even had to extract another branch release of apk to get some missing assets (like the entire Wine image file).
Finally after succesfully building apk for myself been playing a lot of games on my phone. Some games run like crap (Dog Princess for example unplayable fps and unstable), and some require very specific configurations to be stable and perform well, but Imouto Fantasy runs quite well on my Oneplus 9.
For me it actually worked much better than the android version i tries at some point.
I wont share the apk i used (sorry) because its shady as hell frankenstein mess that somehow works for me, but you can definitely play this game through Winlator. My apk build was also like 1gb package and idk where i would even post it to.
I recommend checking the different forks of winlator to see if there is one that already has touch input for games like this. Without it the mouse control is not very intuitive.