I'm not aware of a specific anime titled '7 ghost anime story' directly. However, there are many anime with ghost themes like 'Ghost Hunt' which has various spooky cases involving ghosts, and 'Natsume's Book of Friends' where the main character befriends many spirits, though not exactly seven ghosts.
There isn't a well - known anime that I'm aware of named exactly '7 ghost anime story'. But if you like anime about ghosts, 'Another' is a great one. It has a very eerie atmosphere with a mystery related to the dead. And 'Toilet - Bound Hanako - kun' is also interesting, it's about a ghost named Hanako - kun in a school bathroom, even though it doesn't have seven ghosts as such.
Since I don't know of a particular '7 ghost anime story', I can suggest some other ghost - related anime. 'Mushi - Shi' deals with supernatural creatures which are somewhat similar to ghosts in a way. It has a very unique art style and calming yet mysterious stories. And 'The Promised Neverland' has elements of the supernatural and mystery, though not strictly about ghosts, but it's still a great anime to watch if you like shows with an otherworldly feel.
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