
Quick answer — Souichirou Sako worked on Buddy Daddies (Character Design), Clevatess (Character Design), Magi: Adventure of Sinbad (Character Design) and 2 more anime.
Souichirou Sako worked on Buddy Daddies (Character Design), Clevatess (Character Design), Magi: Adventure of Sinbad (Character Design), Sirius the Jaeger (Character Design), Clevatess Season 2 (Character Design).