The undertaker manga

The Undertaker summary:

Sakura Hayato is a normal high school student - except for the fact that he is abnormally popular with ghosts, which is quite frankly a pain in the neck to him. Just then, he meets the -Undertaker-, who claims his duty is to send off spirits to the other world... This is the oneshot version of -Undertaker Riddle- which is currently being serialised in GanGan Online.