Cute VN, and cute art! I love these school outfits from the MV, and seeing them in pixel aesthetic just makes me like it even more.
Quick little story, doesn't overstay it's welcome, but still captures the duo's personalities perfectly, and has lots of little references, I swear it feels like the Miku backshots thing was just yesterday but you still managed to sneak it in, also o7 to the grem.
Sounds like you have plans to return, so I'd definitely swing by later to see what other choices and changes you implement, great work!