A Seirei Seki (精霊石 "Spirit Stone") is a valuable stone with spiritual powers that can be thrown to release its power on a target. Reiko Mikami and Emi Ogasawara uses them as accessories, making it easy to take and throw one in emergencies. Seirei Sekis are also used to power Ghost Sweeper equipments such as the Jintsū Kon and Kenki-kun, containing a Seirei Seki Quartz (精霊石振動子). Thans is rich in Seirei Sekis, containing 80% of the Seirei Sekis from the world and developing the Seirei Seki Quartz. Thans royalty and their servants are also able to summon Seireijū from Seirei Sekis. The Occult G Men have a Seirei Seki Dantō Missile (精霊石弾頭ミサイル, "Spiritual Stone Warhead Missile") at their disposal. Mazoku weapons use Seirei Seki bullets.
In the film Ghost Sweeper Mikami: Gokuraku Daisakusen!!, Mitsuhide Akechi shows that by focusing all energy into a weapon with good will, justice or love, it can be changed into a Seirei Seki. Mitsuhide did it with his spear, and with some difficulty he manages to make Mikami do the same with the energy of her Jintsū Kon, which she focused on killing Nosferatu. In the end of the film, Mikami tries to make several Seirei Sekis with Jintsū Kons to gain money, but is unable to do it again due to her personality.
|Ghost Sweeper Mikami|
|Main Characters||Reiko Mikami • Tadao Yokoshima • Kinu Himuro|
|Kazuhiro Karasu • Pietro de Bloodeau • Meiko Rokudō • Yakuchin|
Emi Ogasawara • Tiger Torakichi • Doctor Chaos • Maria
|Locations||Mikami Ghost Sweeper Office • Ogasawara Ghost Sweeper Office • Yakuchindō|
Church • Kōfukusō • Orochi Gake • Myōjinsan
Shibusaba Jinkō Yūrei Ichigō
|Media||Manga • Anime • Film • Novel • GS Holmes • Heroes Comeback|
Video games (SFC • PCE) • crossover games (RPG • Baseball) • TCG • Merchandise
Ghost Sweeper • Believe Me • My Jolly Days • Utsukushiki Tōbōsha Series
Gokuraku Ongaku Daisakusen!! • Gorgeous Songs • Gokuraku Daisakusen!! • Drama CD