A Budding Blue Sky - Season 1 Episode 4 The footsteps of a mermaid (1)
- Genre: Mystery
- Studio: BS Asahi
- Keyword: based on novel or book, investigation, friendship, miniseries, bromance, tragic past, codependency, hikikomori, hikikomori syndrome, mystery novel
- Cast: Masahiro Inoue, Shintarô Akutsu, Shôgo Suzuki
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