This is quite the VN! I actually played it yesterday, but I needed a few hours to process it before leaving any form of comment. Your work resonated with me - given that I share a few similarities with the MC - and the message behind it has even inspired me to change my outlook on my own life. Life is indeed fleeting, and should be enjoyed before it's cut short. It's a simple lesson, but it's so very easy to forget.
There isn't much I can say that others haven't already said in their own comments, and probably worded better than I ever could, but...That was one hell of a story. I could really feel Mori's exhaustion and bitterness, and it's a sobering reminder of how quickly any of us could end up in the same position. Memento was adorable, and I can't help but feel for him during his struggle - and eventual understanding - of what life was, and why people react differently to him.
The only decent criticism I could offer would be the length, but given the story was created to be a part of a VN collection and in such a short length of time...You all did very well with this. Bravo!