Editor/Writer – Co-author (with Shinshi Okajima) of “Group Idol Shinkaron” (Evolutionary Theory of Idol Groups), one of the first books to analyze the “Idol Warring States Period” (popular media term for the current idol boom in Japan). Author of the book “Idol no iru Kurashi”(Living With Idols), a collection of interviews talking about idols from the perspective of idol fans.