The game has a lot of content, the game isn't a hold down CTL for 30 minutes Orcsoft game, the game is long, the game has mechanics because it's an actual GAME..
But yeah, you're not supposed to finish the game in 1 play through, you're supposed to pick a few specific girls, play through, and then start over. With the sensitivity values carried over and stuff like the bolt channel making you max speed everything flies by anyways. The 3 new girls have more involved stories/sns choices, but the rest are just make them cum and follow them off the car until an ending cg that doesn't count as a start over ending.
With the taser/stun gun nerf the only thing the girls can do is run out your health and there's 3 skills that can deal with that, let alone a auto revive one.. You pretty quickly get to the point you just have to look out for some of the girls that have maximum strength and can stomp/elbow you for most of your health.
Cash, just invest in the low profit stuff early (gold silver oil) that quickly fluctuates small amounts to make some cash then invest in something that will always skyrocket eventually like upper kamigumi. For example, it might be negative 0-2,000 then go up to like 2600 with enough time. Even a small amount of cash sold at like 6000-6500 will let you buy everything in the game. Can just set the market order and play because the stocks will be sold eventually. It's random of course, but keep in mind that upper kamigumi, zaiya entertainment , and hiden metal tend to be the ones that either tank like crazy or increase like crazy, while the others are far more average.
So, it becomes more sandbox and complete whichever girls you like/want for each playthrough. You aren't going to get a 30 person harem so pick a few or just do whatever you want and do something else the next time you start over.
The only skills that actually matter are ochimusa live (gained automatically, early on) hikakim (bought at any time) and magnum ch (automatic, but late into your first game) Everything else tends to be "Increases sensitivity of the body part" bad skills, prevent girls from fighting back when used (national father in law and chocoball ), or stuff that will recover your health (3rd bar) or suspicion (2nd bar) along with a few make the game less involved skills like bolt that makes you move 3-4 times faster.
Outfits, type 3003 camoflauge or flashy tattoo paint moe (lets you level up 3 skills so a cpl more lines of people during molesting really isn't a big deal compared to some of the level 4 [unlisted] skills) and adult toys can be anything so long as it's stage 3 and has the extra slots. The [medicine] like cocaine doesn't have descriptions, but generally lets you ignore the dangerous mechanic and increase sensitivity for that phase, so you can just take the cocaine, undress their panties 2 times, use the magnum skill, and insert to make even the hardest girls you deal with cum in seconds, even if you haven't encountered them before.
Mini walkthrough so that hopefully the 2-3 people that use search can look up..