Please do dev! It would be a fantasy come true.
Chikan stands right behind girls to block the view for others. Usually, they start slow and quietly grab her ass at first, but later they also grope breasts, put hands inside panties, finger her and can also undress (not completely but showing a lot of skin). Once they can completely mind broken the girl with pleasure, they can also have vaginal sex... but that's more of a fetish.
You can "
research" the Chikan genre on the hentai/porn websites to give you an idea how it happens.
Thinking now about the gradation of opponents in the game by danger - The list goes like this (from the least dangerous to the most dangerous)
1. Simple passersby on the street. All they can do is cause embarrassment to Samantha. But you'd have to be very careless to lose because of them;
2. Crazy bums. works like the passersby, but If you stand too long near to him, he'll yell, “Hey bitch, who the fuck are you looking at?”, and throw an empty sake bottle at Samantha, which will knock her out and her happiness will drop a lot. Sometimes they're just sitting on the sidewalk, sometimes they're walking around waving their arms and yelling at who knows who;
3. Subway molesters. They will try to undress her. Since there are so many people on the subway - being naked her embarrassment will grow very quickly. But escaping from them and running to another wagon is not a problem. The main thing is to be careful while you're in the subway;
4. Drunk office workers returning from a corporate party. Will try to harass and rape Samantha if she's naked or jerking off. But because they are drunk - they move slowly and sometimes fall on the sidewalk to sleep. You may see them not walking but already asleep on the sidewalk, but they may wake up unexpectedly. Something like zombies in the game;
5. Cops. Will chase her if they see her jerking off or walking around naked. They run fast, but since the police department is made up of smokers, they get tired of running and need time to restore breath. Besides, you can knock them down. You can only meet them in the center of the city. They are lazy to visit suburbs where she lives;
6. Motherfucker Miaki. Someone like a boss in the game. Serial rapist. Many places in the city will have “Rapist Wanted” signs with his photo. Will stalk Samantha even if she's wearing clothes. If he catches her, he'll rape her. He'll be found most often in deserted areas, but anywhere in the city. He can't be knocked down because he's too strong. He runs fast because he's sober. He can get tired of running - but he has a lot of energy, so it happens slowly. Also, like Samantha he can climb over obstacles, swim, and climb ladders. All in all, a very dangerous and horny guy. At the end of the game will be caught by the cops and punished. And I think it would be a good idea to put Family Guy's Quagmire clothes on him;