Dark concepts, twisted plots or weird stories in general with supernatural elements, although not necessarily all the time, & sometimes gruesome or gore scenes.
Often surrounding by death, grief, immortality & adding a bunch of psychological / weird aspects
•☆TOP READ MANGAS☆
http://www.mangago.me/home/mangalist/10560•Spellbinding
http://www.mangago.me/home/mangalist/2896616•Top Tier DOUJINSHI
http://www.mangago.me/home/mangalist/2895019 
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