The Detective Boys are walking home one day when they discover two s shaped hooks and a ring with the initials M to A, a wedding ring. They decide to investigate seeing it as an S.O.S.
Genres: Animation , Comedy , Crime , Mystery
Keywords: adventure , age-change , anime , based-on-manga , cop , detective , dramatic , japan , japanese-high-school , mysterious , secret-identity , secret-organization , shounen , suspenseful , watch-series-online , watch-anime-series-online