Looks promising, but is crippled by bugs.
I was entirely unable to have the blonde girl do anything past the first combat. I tried reloading my save and even starting a new game, but no matter what I did, by the second rooftop segment (as in, the first time you're there that isn't the intro battle) all her stats were always ERROR, enemies ignored her, and she didn't get any turns.
One of the enemy types (the blue ones, SD or SDL I think) was impossible to cancel sex with. I'd pick the option to escape, it would say I escaped, but the sex image would still be present underneath my character portrait, and they would immediately recapture me, softlocking me.
The map is littered with tiles that look like they shouldn't be walkable, but are. I'm pretty sure in the roof area with the pipes and plants there were also some tiles that looked empty, but blocked movement.
If you head south immediately after arriving on the rooftop, you can enter the school in the room you end up in after being defeated, before you end up at home. All the characters from that scene are there, but can't be interacted with.
If you lose a combat encounter during the second rooftop segment, when you spawn back at home, it appears to be a softlock. Nothing can be interacted with, and I was unable to leave.
It's one thing for an early game to be lacking in content, but this is borderline unplayable in a functional sense.