I to L (Older Teen) 

Immortal Hounds

by Ryo Yasohachi

It is set in an alternate universe where humans are instantly resurrected after death, save for Vectors, who can spread "Resurrection Deficiency Syndrome".

Jo Jo's Bizarre Adventure 

by Hirohiko Araki

Follow the chronicles of the struggles for the cursed Joestar bloodline against the forces of evil. Each part follows a new protagonist bearing the JOJO nickname. 

Jujutsu Kaisen 

by Gege Akutami

Yuji Itadori a high school student, eats a cursed finger to save his friends without knowing the implications of what comes next.  He joins a secret organisation of Jujutsu Sorcerers to eliminate curses, one of whom now uses Yuji as a host. 

Juni Taisen : Zodiac War 

by Nisio Isin

Every 12 years, the 12 animals of the Zodiac take on the form of warriors and fight the ultimate battle royale. They face each other in battles to the death using the power of their star signs and the survivor is granted...a wish. 

Junji Ito Collection

Several books containing short stories normally horror stories. For Junji Ito himself 'All horrors are things that affect who and what we are and the worst of those can make us loose our humanity'.