Japanese singer-songwriter Sayuri, known for her theme songs for “My Hero Academia” and “Erased,” has passed away. She was 28.

Her official X (formerly Twitter) announced that she died on September 20.

Sayuri’s husband, musician Amaarashi, wrote on X that “she was passionate about music until the very end, as she battled a chronic illness.”

According to Anime News Network, her relatives and close associates held a private funeral.

In July, Sayuri went on hiatus as she was suffering from functional dysphonia, the report added. This refers to a voice problem in the absence of a physical condition.

Sayuri is behind the theme song “K?kai no Uta” from “My Hero Academia” Season 4 in 2019; “Sore wa Chiisa na Hikari no y? na” from “Erased” in 2016; “Heik?sen” from “Scum’s Wish” in 2017; and “Hana no T?” from “Lycoris Recoil” in 2022.