its heavily focused on progression but once USUALLY once you unlock a girl as a party member you can have sex with them. Alticia and whoever the girl is that looks like Alice from Wonderland, and the Rich Girl are main people that are delayed due to story. Otherwise when you unlock a girl, you have to raise the mood, from the touching minigame after fights and when they are in the mood you go back to your room and get busy.how do you get h scenes ? do you just play the game and it happens alongside the story progression ?
you can easily trigger the touching minigame by repeatedly running from fightings, eventually you'll get a prompt about the girl tripping or not being able to flee, and you just use flee again the next turn, and you'll get the touching minigame with her being a little pissed off at you.