If you have been following the isekai genre or the resurgence of character-driven fantasy over the last few years, a particular voice has likely caught your attention: deep, melodic, slightly detached, yet capable of erupting with emotion. That voice belongs to Momo Shiina.
Momo Hirai: The famous "Dance Machine" and member of the K-pop group TWICE. momo shiina wiki
Casting her as Kazuya Souma (the male lead in Hachi-nan) was a bold move. Why cast a female voice actress for a male isekai protagonist? Because the character is a salaryman reincarnated into a child's body. Shiina’s naturally low register provides the perfect "adult man trapped in a shota" energy. Her internal monologues—deadpan, sarcastic, weary—are the highlight of the show. Momo Shiina: The Rising Star of “Cool Beauty”
Momo (Twice): Known as Momo Hirai, a Japanese member of the K-pop group TWICE. Best New Actress at the 8th Seiyu Awards