Master Teacher Series

is a web novel series of occult short stories written by Uni (ウニ) updating on a dōjinshi site and pixiv. The author has been posting on the 2ch occult board and pixiv since 2003, and depicts the occult experiences of a "storyteller" modeled after himself with a senior he met at university called "master". A manga adaptation illustrated by Shū Katayama started serialization in Shōnen Gahōsha's seinen manga magazine Young King OURs on October 30, 2013 and ended March 30, 2018 resulting in 7 tankōbon volumes. A compiled novelization was published by Futabasha in 2014 and resulted in 2 volumes.

Plot
The story revolves around a protagonist who experiences various spiritual encounters due to his upperclassman at his college's club, the "master teacher" in the series title that has spiritual sensitivity.