Episodes 13-25 plus an OVA of the anime following the adventures of a boy who discovers that he is Satan's son. Rin Okumura (voice of Nobuhiko Okamoto) is raised by exorcist Father Fujimoto (Keiji Fujiwara) in ignorance of the identity of his true father. When Rin discovers the truth he resolves to use his powers for good and follow Fujimoto into the exorcism business. However, keeping his evil powers in check won't be easy when he inherits his father's demonic sword. The episodes are: 'Proof', 'A Fun Camping Trip', 'Act of Kindness', 'The Wager', 'Temptation', 'Gale', 'An Ordinary Day', 'Mask', 'The Secret Garden', 'Demon Hunting', 'Truth', 'Satan's Spawn', 'Stop, Time' and the OVA episode 'Runaway Kuro'.