Yu Okano 
The Unwanted Undead Adventurer (Manga) Volume 5 [EPUB ebook] 

Rentt, the undead adventurer, manages to survive the poisonous Tarasque Swamp and retrieve the Dragon Blood Blossom for the orphan Alize. Just as he’s about to return, a mysterious stranger approaches him and offers him a job on the behalf of his mistress. Rentt accepts the request, and at the behest of Sheila and the adventurer’s guild, he agrees to meet with the elusive head of the Latuule family. However, there’s more to this family than meets the eye. Will Rentt get more than he bargained for with one of the oldest and most influential families in Maalt?