Pairing up Tenshi and Shion made for a good interaction in this short-and-sweet VN! There's a really good use of theme, mixed naturally into the cute writing.
The gameplay bits do what they need to, although I did notice the text running on its own without the ability to manually pause or fast-forward. (Note that I'm playing from Linux Mint and the Wine software for Windows compatibility, in the case that that causes anything.)
I didn't detect a whole lot of audio, unfortunately. On the other hand, the visuals are very simple and easy to read. Representing characters with icons is a really interesting idea, emphasizing the text while still keeping some visual impact.
Overall, this one has a good formula & layout, so I enjoyed reading through it!