Mental illnes

http://www.mangago.zone/read-manga/killing_stalking/ (Haven’t read this though)
http://www.mangago.zone/read-manga/hogu_hagyeongsu (BPD, psychopathy, dependent PD, etc)

Multiple personality disorder:
http://www.mangago.zone/read-manga/g_senjou_no_neko/
http://www.mangago.zone/read-manga/dear_myself/
Mental issues due to past traumas:
http://www.mangago.zone/read-manga/boys_next_door/
And try also:
http://www.mangago.zone/read-manga/sakura_gari/ Masterpiece
http://www.mangago.zone/read-manga/kawaii_akuma/ Yandere

Thank youu! I love KS
Haven´t read Hogu Hagyeongsu tho, I'm gonna give it a try.

Thank youuuu
╮(￣▽￣)╭
I'm not sleeping tonight!

http://www.mangago.zone/read-manga/hanazono_no_kioku/
http://www.mangago.zone/read-manga/wandervogel/
http://www.mangago.zone/read-manga/warehouse/
http://www.mangago.zone/read-manga/ore_higaisha/
http://www.mangago.zone/read-manga/their_circumstances_sria/
http://www.mangago.zone/read-manga/my_god/

Np, enjoy your reading :)

I love Warehouse!
And I'm gonna read the others.
Thank you~