Quick answer — Huuka Kazabana worked on My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (Original Character Design), The Strongest Sage with the Weakest Crest (Original Character Design), The World's Strongest Rearguard (Original Character Design).
Huuka Kazabana worked on My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (Original Character Design), The Strongest Sage with the Weakest Crest (Original Character Design), The World's Strongest Rearguard (Original Character Design).
