Text maker here. Thanks for reading, and I'm glad you liked it!
I kinda wish there was more about Kana and Kotohime's time together. Months of interactions get skipped over, but maybe their friendship is cute enough to warrant a couple more scenes depicting it.
Yeah, you're right on the suddenness of Latter Part's ending. Sorry Keine got so sidelined there. I had contemplated having another scene or two involving Keine, exploring her relationship with Mokou and leading in to the final scene a little better. But there was basically no chance we were going to get a sprite for Keine in time, and I wasn't very confident in writing her as a character. It's the same deal with Reisen, though at least we could reuse a (beautiful) sprite from another project for her-- Keine had no such luck.
The bullet hell section was going to become a selectable option in the menu, but we ran out of time. Maybe we'll add one in an update.