Touhou: Principal Component Regression

excellent work! But there is bug on it,After giving the technical book, I couldn't interact with the exclamation mark on Nitori's head. In the end, I think the fourth ending may be difficult to unlock, and I hope there is a guide

Do you have any advice on how to get the last three shards? I need help please.

This was very fun to play! I like the idea of "altering the boundary between simplicity and complexity" as an incident, the well written dialogues made me laugh multiple times and all the characters are very recognizable even in cube forms. Great work!