Quick answer — Chiyo Tomaru voices Delia in Ascendance of a Bookworm Part 2, Asuha Kouriyama in My Instant Death Ability is Overpowered, Utako in Onee-chan ga Kita.
Chiyo Tomaru voices Delia (Ascendance of a Bookworm Part 2), Asuha Kouriyama (My Instant Death Ability is Overpowered), Utako (Onee-chan ga Kita).
Delia is voiced in Japanese by Chiyo Tomaru.
