
Quick answer — Asumi Yoneyama voices Tatsu in Angolmois: Record of Mongol Invasion, Flam Fen Dran Valgas in Drug Store in Another World - The Slow Life of a Cheat Pharmacist.
Asumi Yoneyama voices Tatsu (Angolmois: Record of Mongol Invasion), Flam Fen Dran Valgas (Drug Store in Another World - The Slow Life of a Cheat Pharmacist).
Tatsu is voiced in Japanese by Asumi Yoneyama.