In the 21st century, with the spread of DVDs and satellite broadcasting, all sorts of "buried masterpieces" are being unearthed and revived. Yet, in a corner of this landscape, there exists a group of works, known only by their existence, that remain unseen. These works are secretly passed down through word of mouth. Why were these stories "sealed away"? Who decided to "seal" them, and when and where did they make that decision? The author, who was involved in the online publication of the face photo of Seito Sakakibara during their university days, thoroughly gathers testimonies from those involved, focusing on post-war special effects, manga, and games, to approach the "mystery." A must-read new-generation reportage. Thank you for viewing.