
Quick answer — Ikuto Kanemasa voices Ken Hakui in Insomniacs After School, Aoba in BEASTARS Season 2, Asuka Shindou in ORESUKI: Are you the only one who loves me?: Our Playball / Our End Run / Our Game and 2 more characters.
Ikuto Kanemasa voices Ken Hakui (Insomniacs After School), Aoba (BEASTARS Season 2), Asuka Shindou (ORESUKI: Are you the only one who loves me?: Our Playball / Our End Run / Our Game), Sarnos (The Aristocrat’s Otherworldly Adventure: Serving Gods Who Go Too Far), Jieitai Ota (Magical Destroyers).
Ken Hakui is voiced in Japanese by Ikuto Kanemasa.