Manga by author Akai Higasa

From Yen Press:Accepting the post of Royal Tutor at the court of the king of Grannzreich, Heine Wittgenstein is a little professor with a big job ahead! Each of the kingdom's four princes has a rather distinct personality. Does their diminutive new instructor have what it takes to lay down some learning? It's a comedy of educational proportions!

Hayate Sakura, a normal high-school student except one thing: ghosts are attracted to him.One day, someone saved him from all the ghosts he had attracted. His so-called hero introduced himself as Undertaker Riddle who sends spirits to peace. Sakura then asked him a favor if he could help him get rid of the ghosts, and in exchange he'll do anything. Undertaker Riddle then offered Sakura to work for him as an Undertaker too. Will he take the job and get rid of the ghosts, or decline the job and have the ghosts on his tail for the rest of his life?