If i could i would gladly do it T^T , however it's performance on PC is already on the edge, there's no chance it'll be playable on android, plus the controls (you'll need a bluetooth keyboard attached, not sure if a gamepad will be enough). Apart from the above, some plugins (like the translation) and some shaders won't work on mobile system. All in overall it is highly unlikely that this game will be ported to android anytime soon, maybe in a few years, when phones will be stronger then current PC (although, at that point, there will probably appear an PC emulator on android for such)
Spinoffs and such will most likely all have Android support:
https://nymphokyun.itch.io/futabirthday
https://www.dlsite.com/maniax/announce/=/product_id/RJ01000460.html