as i'm already reply to someone (23d ago) suggestion
here's the way to be able to cum so much in this game, BUT it also -
some additions to what could be exploited in game(and probably player need to be cheating to gain a lot of money instantly)
if the MC's/player have a lot of money(or already has), and the player want's more "injecting fluids" times(maybe a crazy amount of times) player could do this trick:
-buy a lot of "Endurance+" and "SempillX" with 70:30 calculation or as much as player want's from the drug store and then go back home
-consume the "Endurance+" as much as player want or everything at once, just don't worry the mc WON'T DIE(I've experienced to have more than 1k times "injections"), then consume the "SempillX"(or more) to restore the "injection" to the max.
-it also make player gain more sub easily by "injecting fluids" constantly, and that what the viewers wants(at least that's what it's looks like)
some addition to fix this problem(for Dev.)
-just make the warning of the drugs true. then add some story that if the player choose to ignore the warning and consumes more than 2 in a week(like overdose or something), then when the landlord came to "have the money" eventually the story is up to the Dev. mainly it's game over because player ignore the warning, you get the idea of what it could be.