Becoming a Cthulhuian Overlord

Qi Su dies and reincarnates as a high school student, reborn with the power to see ghosts and spirits around him. Is he the only one who sees them? In order to survive from man-eating spirits, Qi Su accidentally comes across phantom relics which help him to disguise himself as a ghost, so he can begin exploring the mysterious world of Cthulhu. (Source: Tapas) Note: Includes 1 extra chapter.