
Quick answer — Koutarou Tazawa worked on Toilet-Bound Hanako-kun Season 2 Part 2 (Prop Design), Toilet-bound Hanako-kun Season 2 (Prop Design).
Koutarou Tazawa worked on Toilet-Bound Hanako-kun Season 2 Part 2 (Prop Design), Toilet-bound Hanako-kun Season 2 (Prop Design).