Bungo Stray Dogs: Osamu Dazai's Entrance Exam

Doppo Kunikida is an idealist and a straight-laced detective at the Armed Detective Agency, an organisation that takes on dangerous jobs even the police won't handle. Everything in his life is going just as he's planned... until one day, he's paired up with the agency's newest hire: a suspicious, eccentric, suicide-obsessed man named Osamu Dazai.

Kuroshitsuji: The Most Beautiful Death in the World

England, the 19th Century. The almighty butler Sebastian of the Phantomhive House: the "evil nobles" that are contracted to perform Queen Victoria's "underground" work. His true form is that of a demon. According to his contract with his young Master Ciel, a proudly independent boy who faces his cursed fate head-on, he becomes Ciel's shadow and cleans up the incidents that occur in the underground society.