Junka Kobayashi

Gifted with a strange ability to see into the troubles of others, kind-hearted Yuki Sakurai finds his life turned upside down the day a handsome stranger named Luka appears. Suddenly, evil beings known as "Duras" begin hunting for him and a world of magic, terror, and a dark truth about his past surround him.

Six months ago, Lord Hugh Disward (Huey), lost his eccentric grandfather, Wes. To inherit Wes's estate, Huey must take guardianship over the 'Mystic Archives of Dantalian' that contains forbidden knowledge and a mysterious girl called Dalian. Dalian and Huey begin an unlikely partnership as they solve mysteries caused by Phantom Books. Original Light Novel written by Gakuto Mikumo and illustrated by G-Yuusuke. Adataped to manga first by Chako Abeno, and again by Monaco Sena.

Set in a fictional European country in 1924, a Japanese exchange student meets a mysterious, brilliant girl who only leaves the library to sleep. Her brother, a detective, relies on her exceptional mind to solve difficult mysteries.