Wakana Ookuma

Born in Saitama Prefecture on April 13, 2001, Wakana Ookuma is a Japanese voice actress and singer affiliated with Ken Production. She joined the agency's artist training program in 2018 and debuted professionally in 2021 with a role in the Japanese dub of Marvel's Eternals. Best known for voicing Shiki Wakana in Love Live! Superstar!!, Mother Sphere in Stellar Blade, and performing as part of the idol unit AiScReam, she also pursues solo music under the name Spileben.

Wakana Ookuma’s Rise in Anime Voice Acting

The name Wakana Ookuma became firmly tied to a new generation of idol anime when she stepped into the world of Love Live! in 2022. Her entry into voice acting came through persistence: after joining Ken Production’s training program in 2018, she spent years honing her craft before landing her breakthrough role. That dedication shaped a performer whose work spans both animation and video games.

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Most Known Roles of Wakana Ookuma

Mother Sphere / Additional Voices – Stellar Blade (Video Game, 2024)

Female Zombie Attacking – Zom 100: Bucket List of the Dead (TV Mini Series, 2023)

Minor Role (Japanese Dub) – Eternals (Marvel Film, 2021)

Love Live! Superstar!! and Shiki Wakana

Joining Liella! as a second-generation member, Ookuma voices Shiki Wakana – an Aries-sign school idol whose personality fans found immediately compelling. She also became part of the subunit 5yncri5e! and the limited-time unit AiScReam within the franchise. In 2026, the AiScReam unit received the Singing Award at the 20th Voice Actor Awards, marking a formal industry recognition of her musical work.

Spileben and Solo Music

Beyond the Love Live! umbrella, Ookuma launched an independent solo music project under the name Spileben in late 2024. The project signals a move toward a musical identity separate from her idol group work. Her background in jazz dance from childhood feeds naturally into her performance style across both voice roles and live shows.

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