Zekkyou Gakkyuu is a set of three supernatural specials from 2012. They present themselves as screaming lessons that guide viewers into a dark world hidden behind ordinary daily life. The class needs no textbooks or pencils, only courage. The episodes were first streamed on the Ribbon YouTube channel and then aired on TV Tokyo during the Oha-Suta variety program as part of the Ribbon x Oha Suta specials.