
Quick answer — Ichirou Mizuki worked on Tonari no Seki-kun: The Master of Killing Time (Insert Song Performance), The Master of Killing Time OVA (Insert Song Performance), Marriage of God & Soul Godannar!! (Theme Song Performance).
Ichirou Mizuki worked on Tonari no Seki-kun: The Master of Killing Time (Insert Song Performance), The Master of Killing Time OVA (Insert Song Performance), Marriage of God & Soul Godannar!! (Theme Song Performance).