An NPC. To repay the debt owed to [Sunraku](https://anilist.co/character/271367/Rakurou-Hizutome) for saving their life, they accompany him on his exploration of the Abyssal Capital, Ruluiath.
His grandfather was the only member of the Fish-folk race to ever pierce Ctarnidd's Left Eye and escape Ruluiath alive.
