Romeo Tanaka has written at least 2 books. Their most popular book is 人類は衰退しました 1 with 1 save with an average rating of -⭐.
Series
1 primary bookAuthored 100% of series
人類は衰退しました is a 1-book series first released in 2007 with contributions by Romeo Tanaka and 田中ロミオ.