Dark?

Library manga

Old Newbie Kim ChunShik
Odd Girl Out
Not Just Anybody Can Become a Villainess
Not Even Bones
No Scope
Night Fishing
Nichijou
Nice To Meet You
Nevertheless, I love you.
Nevertheless
Nano Machine
My Younger Brother's Friend
My Roommate is a Gumiho
My Path to Killing Gods in Another World
My Little Bookstore
My Level's the Best
My Irresistible Ex
My Imperial Physician
My Hero Academia
My Gently Raised Beast
My Deepest Secret
My Daughter is the Final Boss
My Daughter Is a Musical Genius
My Civil Servant Life Reborn in the Strange World
Mook-Hyang The Origin
Monster Pet Evolution
Monster Duke’s Daughter
Mom, I'm Sorry
Miracle Hero!
Midnight Poppy Land