"Toys" are the gifts of power granted to those chosen to wield them, each bearing traits that fit their bearer. Some are born untainted and use their gifts to become detectives; others grow tainted with poison and turn into phantom thieves. These opposing groups spurred the creation of detective academies worldwide, training sleuths to battle and apprehend thieves.
Sherlock Shellingford, Nero Yuzurizaki, Hercule Burton and Cordelia Glauca form "Milky Holmes," a team hailed as the pinnacle of Yokohama"s Holmes Detective Academy. Yet during an encounter with phantom thief Arsène, their Toys vanish, rendering them unqualified to remain detectives. Stripped of status and relegated to a dilapidated attic, they face expulsion unless they reclaim their powers within three months.
Tantei Opera Milky Holmes chronicles a once‑glorious squad"s quest to recover their Toys while striving to keep working without the powers that once defined them.