Osamu Tsuruyama is the design director for the Oh My Goddess! series.
Tsuruyama is staffed in:
- Akai Hayate (TV): director
- Anime V Comic Rentaman (OVA): director
- Ariel (OVA): character design, animation director
- Ariel Deluxe (OVA): character design, animation director
- Barefoot Gen: key animation
- Dangaioh: key animation
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