
Quick answer — Daisuke Matsubara voices Mutsu in Sekirei: Pure Engagement, Solle Grumman in Atelier Escha & Logy ~Alchemists of the Dusk Sky~.
Daisuke Matsubara voices Mutsu (Sekirei: Pure Engagement), Solle Grumman (Atelier Escha & Logy ~Alchemists of the Dusk Sky~).
Mutsu is voiced in Japanese by Daisuke Matsubara.