Sleepless Night

Explore the captivating world of Sleepless Night, a captivating manga that masterfully blends Action, Adult, Fantasy, Smut, Yaoi. Created by the talented Adapted: Agar, Ibelain. Experience this thrilling series for free at MangaSSS, where you’ll find a rich collection of manga to explore. With 40 chapters translated into English and more on the horizon, there's never been a better time to start your adventure. Be the first to know—create an account today, bookmark Sleepless Night and never miss an update!

Vampire Hunter Heilo carries out a murder commission for a client in order to find clues that could lead him to the person who murdered his family as a child. The target that Heilo has to deal with is the head of the Rivera group, Hereis. Whilst undercover, Heilo joined Hereis' company, known for being a big shot in the political world and behind the scenes. Then, he successfully manages to become his executive secretary. However, Hereis' special treatment keeps causing Heilo's conviction to falter... What will Heilo's fate be if he falls in love with a man he has to kill?!+