Mystery anime of Spring 2021Apr–Jun · 3 works← Anime in Spring 2021Action 14Adventure 2Comedy 10Fantasy 16Isekai 3Music 1Mystery 3Romance 1Sci-Fi 7Slice of Life 9Sports 6See every Mystery anime →OP song · officialButt Detective Series 513 episodesPrimeFOD3 moreMORIARTY THE PATRIOT13 episodesFODPrime2 morePretty Boy Detective Club12 episodesDMM TV3 more