Yui Saikawa (斎川唯) is a supporting character in The Detective Is Already Dead and 1 other title, voiced in Japanese by Kanon Takao. The series' music includes "The Detective is Already Dead - Opening Full『Koko de Ikiteru』by Mary x jon-YAKITORY", "Tantei wa Mou, Shindeiru Ending Full『Kodou』by Nana Kagura".
