There are at least 2 projects under the name Asuna:

1) Naoyuki Arashi has started music production since 1999 mainly using old reed organ and electronics. While releasing from various labels world wide such as Lucky Kitchen, Apestaartje, Autumn Records, and/OAR, Power Shovel Audio etc.. he makes sound installations using the organ and also exhibits photography art using the half camera. A graduate from Tokyo Zoukei University, faculty of fine arts.
~http://www.spekk.net/artists/asuna.html

2) Asuna is a metalcore band from Poughkeepsie, NY, USA. Active since 2020.
https://www.facebook.com/AsunaBand
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Artist biography from last.fm