Sweet Clown: Gozen Sanji no Okashi-na Doukeshi first launched for PS Vita in July 2015 in Japan.
Here is an overview of the story, via VNDB:
One day, a single letter arrived addressed to me.
It was an invitation to the “3 AM Tea Party” that was to be held at Sweet Clown Castle.
I have a secret I can’t tell anybody.
That “secret” is a very sad memory, but it’s one that I can’t forget.
I’ve spent my days ensuring nobody becomes aware of or can discern my scars.
That’s because I don’t want anybody to interfere, nor do I want anybody feeling sorry for me.
In the end, people are all alone.
Even if they approach you with a gentle expression or with kind words… I think that they don’t really care about me from the bottom of their hearts. That’s because they’ve realized that it’s a joke made in the moment. When tomorrow comes, they can easily forget all about it.
The sender of the letter is named “Sweet Clown”.
Will this person really grant my wish? Or will this person leave me with new scars?