Quick answer — Shotou Shinkou worked on My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (Original Story), The Strongest Sage with the Weakest Crest (Original Story).
Shotou Shinkou worked on My Isekai Life: I Gained a Second Character Class and Became the Strongest Sage in the World! (Original Story), The Strongest Sage with the Weakest Crest (Original Story).
