Kairiki Bear, a famous Vocaloid producer who is known for hits such as “Venom” (44 million views on YouTube) and “Darling Dance” (22 million views), launched a new project called Retbear in June 2022. Retbear is an “anonymous” unit that combines Kairiki Bear with a different unknown vocalist for each song. The guest vocalist performs under another name than usual. Retbear’s debut song will be “Atamannaka DEAD END” (unknown Vo: 10fu), the opening theme of the TV anime Black Summoner. The new opening theme was recently revealed in the anime’s second official trailer.
Black Summoner trailer:
Black Summoner is a Japanese light novel series written by Doufu Mayoi. It began publication online on the Shousetsuka ni Narou novel in October 2014. Overlap began publishing the series with illustrations by Kurogin under their Overlap Bunko imprint in June 2016. As of August 2021, fifteen volumes have been released. A manga adaptation with illustrations by Gin Ammo began serialization in Overlap’s Comic Gardo website in January 2018. As of October 2021, its chapters have been compiled into eleven tankoubon volumes. An anime television series adaptation by Satelight will premiere in July 2022.
Black Summoner anime visual:
Source: Press Release