songs, and "Planet/The Hell", were used as theme songs to the Terra Formars Revenge anime. The author of the original Terra Formars manga, Yū Sasuga, is a fan of Seikima-II and designed the cover of XXX -The Ultimate Worst-, which was drawn in finality by his partner on the series Kenichi Tachibana. A second double A-side single, , was released on June 15. The first track is the theme song of the horror film Sadako vs. Kayako. At a special event held at Zepp Tokyo on December 31, 2019, it was announced that Seikima-II would perform a 35th anniversary tour in 2020. However, on July 2 they announced that due to the COVID-19 pandemic in Japan, this was changed to events where previously recorded concerts would be screened and the members will be present for live discussions. Taking place at 15 locations between October 11 and December 27, each venue was limited to half-capacity, with two "performances" held at each; one during the day and another at night. On January 23, 2021, Seikima-II announced intentions to continue their 35th anniversary reunion into 2021 with actual concerts and a new album. However, the live performances have once again been turned into screenings of previously recorded concerts as the pandemic continues. The "tour" began on October 23 and ended on January 6, 2022. Additionally, it was announced that Ace Shimizu would appear at some of the dates, marking his first time reuniting with Seikima-II in 16 years. On June 6, the band announced that Bloodiest, their first album of original material in 23 years, would be released on September 21. It features songwriting contributions from Ace Shimizu and Damian Hamada. It was also announced to feature all the singles released in 2016, remixed with added backing vocals from Zod Hoshijima. Seikima-II will perform a tour from October 6, 2022, to February 15, 2023. Seikima-II in pop culture Seikima-II notoriety in Japan is very high: they are considered a legendary heavy metal band in their country. The original video animation was released in 1992 and features Seikima-II members as main characters, with Demon Kakka providing his character's voice. The Hokuto no Ken anime adaptation contains a character called Kogure, who is based on Demon Kakka, himself formerly known as Kogure. Episode 49 of YuYu Hakusho also briefly mentioned Seikima-II, with the parody being that one of the demons was listening to them on