Production Credits
Sayumi Yokoyama has 13 production credits.
Visual Effects
Credited for Key Animation in 12 shows -
JoJo's Bizarre Adventure,
Attack on Titan,
Log Horizon,
Yozakura Quartet: Hana no Uta,
The Seven Deadly Sins,
The Rolling Girls,
The Ancient Magus' Bride,
That Time I Got Reincarnated as a Slime,
Vinland Saga,
The Day I Became a God,
SHAMAN KING and
Vivy: Fluorite Eye's Song.