I Failed the Mission and Became a Ghost Master

Am I dead? How did he become the ghost's young master? "Young Master, today is the Ghost Eclipse Dance Party in Ghost King City. Please attend." "Master, if this hotel is so unreasonable, just buy it." "Master, I give you a treasure, the devil Bugatti, which can travel unimpeded throughout the ghost world." … Protagonist: If possible, I want the train that can control ghosts This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.