
Quick answer — Takuma Morishige worked on Tonari no Seki-kun: The Master of Killing Time (Original Creator), The Master of Killing Time Specials (Original Creator), The Master of Killing Time OVA (Original Creator).
Takuma Morishige worked on Tonari no Seki-kun: The Master of Killing Time (Original Creator), The Master of Killing Time Specials (Original Creator), The Master of Killing Time OVA (Original Creator).