
Quick answer — Taishi Tsutsui worked on We Never Learn!: BOKUBEN Season 2 (Original Creator), We Never Learn: BOKUBEN (Original Creator), We Never Learn OVAs (Original Creator).
Taishi Tsutsui worked on We Never Learn!: BOKUBEN Season 2 (Original Creator), We Never Learn: BOKUBEN (Original Creator), We Never Learn OVAs (Original Creator).