Narumi Yui

Many people have spent countless of nights in cheer, in tears, or even in fear, listening to the All Night Nippon radio segment even after 55 years since it first aired. For their 55th anniversary, a special live stage theater that looks at the lives of the people sitting behind the radio speakers will be streamed live during the segments on March 20th and 27th of 2022. (The All Night Nippon segments continued to run during earthquakes and natural disasters to deliver news and songs to the masses)

Eimi, who came to Tokyo after graduating from junior high school, invites her sister Yu, who lives in her hometown of Shiga, to move to Tokyo with her. She is reluctant at first, but suddenly accepts and soon after goes missing. One day Eimi meets Hiyori, whose sister is also missing. Everything changes when the police contact her to inform her that they have found the body of a young woman in Lake Biwa, but the body is that of Hiyori's sister, not Yu. Together Eimi and Hiyori search for the murderer, but things take an unexpected turn.

Shigeru Daimonji, the Secretary of National Defense, has ordered Yua Yaiba/Kamen Rider Valkyrie to eliminate Kamen Rider MetsubouJinrai. While she hesitates to act on this directive, the Rider itself sets sights on Valkyrie. Meanwhile, the now former Solds attempt to discover freedom for the first time without ZAIA Enterprise, while engaging in an all out war against A.I.M.S. Isamu Fuwa/Kamen Rider Vulcan, who personally witnessed the birth of Kamen Rider MetsubouJinrai, investigates to discover their true goal. What is Yua's fate, who acts on her own justice as she refuses to fight both Kamen Rider MetsubouJinrai, the Solds, & Isamu who is determined to carry out his final mission as Kamen Rider Vulcan?

After school, Reina and the others discover a video on the internet. A high school girl’s suicide live was filmed there.Reina notices that the uniform in the video is the same as her school.Then she goes to the restroom where the suicide Live took place to find out the truth.