The prequel of Trick & Treat:twtpwitch::twtpstar:
Store page:
http://store.steampowered.com/app/594950/The_Witches_Tea_Party/
It has more story but (even) less horror than T&T X'D
And if you've bought the T&T Art Book, there's a 15% off Witch Bundle.
Hope you can enjoy it as well!