Comment by Anton.vl on Ruby Jane

@Anton.vl From google, a feeling of deep anxiety or dread, and frustration that isn't specific.

For me it is what makes your heart ache, it's bearable but not exactly a nice feeling.

As for the genre, I don't think it's an 'official' genre, it's more like any type of manga/manhwa/manhua that makes you feel that particular emotion, regardless of its genre.