Lto, kdy umel Hikaru 4 (2026)

Yoshiki and Hikaru grow up together in the same village. One day, however, Yoshiki realizes that Hikaru has been replaced by some kind of thing: a Hikaru who is a perfect copy of the original. Yoshiki knows that Hikaru is not human, but decides to accept him, and the two continue living as if nothing has happened. But what exactly is Hikaru? As they investigate, the boys learn new information about Mr. Nnuki and the history of Kubitachi village. Time is running out, though, and strange things are beginning to happen around them.