In no particular order, except alphabetical. Ones with * are series i particularly enjoy. Ones with ? are titles i haven't read yet, but caught my eye. These are all mostly horror/thriller series.
>Ajin
(Anime is meh, manga is p good. Im behind)
>? Aka Ihon
>?Akagi series
(The best gambling series out there, uniue art style)
>*Alice in Borderland
(10/10)
>Alive
>All You Need is Kill
>Arata Primal
>*Kamisama no Iutoori
>*Kamisama no Iutoori Ni
(Death games, lots of fun)
>?Becchin to Mandara
>*BioMeat: Nectar
(A bit cliche, but it's done well and the monster designs are interesting!)
>?Black Jack
>Bloody Monday
>Boku no Kanojo wa Kirei ni Warau
>*Bokutachi no Ikita Riyuu
(Not all that scary, but has an interesting mystery)
>Bokura no Hikari Club
(Gorefest)
>Bl@ckout
>?Darwin's Game
>Enigma
>*Apocalypse no Toride
>*Franken Fran
>*Fuan no Tane
>*Fuan no Tane+
(Short stories, solid spooks, best read at night)
>Fukushuu Kyoushitsu
(Revenge story, completed but i habent finished it. I think it was canceled and had to end things off in a rush maybe)
Not all of these are "underground" but they're good.
