>I do kinda wish some of the ending were a little fleshed out
As do I. If I were to do it again, I would've added more, more, more. Definitely add at least one more scene to offset the date -> epilogue resulting in back to back sex scenes.
Maybe I will, you never know. I had to pace this one weirdly because I wanted players to get a thorough introduction to the girls through a longer common route before they chose.
>deck the main character in the face
I tried to avoid the very Japanese trope of making the self-insert a wilting flower. And then when the results leaned too far in the other direction, making him a boisterous dummy, I just fanned the flames because it was funny. I think in the very first scene with the flashback is the most unforgivable for me. It's just so enraging.
>pomu's ending
I'll give you a hint. You get on it before the collab scenes. So the first day's choices matter the most, and after that it doesn't matter at all.