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Active Hololive Vtubers IRyS and Ninomae Ina’nis both released new cover songs performed with graduated member Nanashi Mumei. The Ina’nis music video appeared first and features the two singing the song “Deep in Abyss.” The IRyS performance followed a few hours later and is a cover of “Gehenna.” As a reminder, Mumei left the company on April 28, 2025.
The Ninomae Ina’nis and Nanashi Mumei duet may sound very familiar if you keep up with anime series. “Deep in Abyss” is the opening for the first season of the anime adaptation of Made in Abyss. Ina’nis also drew the picture of her and Mumei together in outfits inspired by Riko’s attire from the series.
You can see the “Deep in Abyss” cover music video below:
As for the IRyS and Nanashi Mumei cover of “Gehenna,” that is their take on the wotaku Hatsune Miku song. That original song also appeared in the most recent game based on the Vocaloid, Hatsune Miku: Colorful Stage (Project Sekai).
Here’s how their cover of “Gehenna” sounds.
Before her graduation, one of the things Nanashi Mumei was known for was her singing, and the Hololive Vtuber released a few covers leading up to her departure. The very last one shown on her channel is a cover of Rokudenashi’s “One Voice,” which you can see below:
Both IRyS and Ninomae Ina’nis are active Hololive Vtubers, and Nanashi Mumei graduated back in April 2025.
