A great-looking game with a very good atmosphere.
The plot and the stories were very interesting, intriguing, and well thought out. Although the ending got a bit weird.

However, there are multiple off-putting instances while experiencing the story.
For example:

• the bad translation,
  
• a particular bug that repeats dialogues and sometimes addresses the wrong speaker
  
• the characters' way of speaking that changes, unfitting for their character and personality (like the 8 year old girl saying, "God, how I hate...")

All amounting to making it strange and confusing at times.

Most choices barely impact anything other than a few lines, and sometimes not even that, and the only important choices are for the endings and one achievement.
I'd personally rather have the game having plain text than placebo choices.

"Outside the Door" is a great novel! She makes you think about important things and asks uncomfortable questions. A small but interesting story and a beautiful design are worth their reasonable price. I recommend completing this game.

The story is surprisingly gripping, the art style is beautiful, and the soundtracks fits perfectly. Short but worth.