Wishing to follow in his father's footsteps despite being unable to see ghosts, Takeru receives a Ghost Eyecon on his 18th birthday, which allows him to see monstrous ghosts called Gamma before they kill him for other Eyecons.

Takeru Tenkūji ( 天空寺 タケル, Tenkūji Takeru) is the current heir to Daitenkū-ji who displays in an interest in historical figures after his ghost hunter father, Ryū, left him the tsuba from Miyamoto Musashi's katana, which the former wears as a necklace, and enjoys reading from a book titled Stories of the World's Greatest People ( 世界偉人伝, Sekai Ijinden).