Miroku (弥勒 Miroku) is a Bhikkhu Buddhist, lecherous monk, age twenty, who travels the countryside performing spiritual services such as exorcisms and demon exterminations, although sometimes he deliberately falsifies these to earn comfortable rewards. Miroku can attack enemies with his holy staff and sutra scrolls, but his greatest weapon is the 風穴 Kazaana embedded in the palm of his right hand - which is actually a hereditary curse originally inflicted by Naraku upon Miroku's grandfather. Though the Kazaana is extremely powerful because it can suck in almost anything in its path, it grows larger with continuous use and will eventually consume Miroku, as it consumed his grandfather, Miatsu, and his father. Miroku is able to seal up his wind tunnel with the prayer beads that are wound around his arm, but the curse can only be broken by killing Naraku.

Miroku is very brave, willingly a participate in self-sacrifice for others. Rather than die, he does everything he can to get out of a bad situation. While he is no coward, running away from someone if he feels he's no match against them is not something he's shameful about if he feels it's the most reasonable option.