I'm a sucker for multiple endings. I found two endings (though you did say that mechanic broke). It's well written, with a good presentation of unaggressive/aggressive emotions.

The story starts out interesting with some cutscenes and light backstory.  I did not expect the storyline!

I liked the Kumachan painting it was cute, and the other paintings on the walls were a nice touch. 

I got lost easily in the beginning with so many rooms and doors, but I think it's supposed to be like a puzzle type thing like that.

I liked this a lot.  Very polished, and the atmosphere was nice.

While their are multiple endings, the mechanic for properly generating them broke.  Therefore, don't worry to much about your choices.  You will be presented the option to see all endings if you save before the last scene.  This "game" can be completed in less than 10 mins.