Ninja Boy Rantaro· Season 1 · Episode 56The Secret of the SignS01E56·30m·NHK BS1Not streaming in your region — see every region's optionsSharePreviousThe Stolen SignS01E55NextThe Princess is?S01E57Keep goingSeasonSeason 1 ranked & reviewedEvery episode in airing order with ratings and dates.StreamWhere to watch Ninja Boy RantaroEvery streaming service and region, checked around the clock.MatchupShows like Ninja Boy RantaroThe closest matches, ranked by overlap and rating.
