One of the scarier Yami Shibai stories is the one where a person moves into a new apartment and starts to notice strange things. It has a great build - up of suspense as the character slowly discovers that the apartment has a dark history. Another story that stands out is about a school where students start to disappear one by one. The mystery and horror elements in this story are really well - done.
In Yami Shibai, the story titled 'The Red Thread' is quite interesting. It plays on the Japanese superstition related to the red thread of fate but in a very dark and twisted way. Also, there's a story about a cursed doll. The doll seems innocent at first but as the story progresses, it reveals its true, terrifying nature. There are many such stories that are worth checking out if you like Japanese horror.