Jiruo

About
Jiruo is a moon whistle Delver that serves as a teacher for apprentice delvers from the Belchero Orphanage in the town of Orth. While he works as an instructor for the children, he's also largely responsible for their upbringing and well-being. His students call him "Leader".

He was the disciple of the legendary white whistle Lyza "the annihilator", and the later entrusted him with the safety of her daughter Riko following her miraculous birth.

Appearance
White hair with bright blue eyes, average height

Personality
As a teacher, he cares all the students of Belchero Orphanage, ensuring the safety of all including bell-bearers, however he is strict during night time patrols.

History
When he was at young age, he's already a red whistle delver that receives a duty from Lyza to take care of her child Riko. Along the conversation with Ozen, Lyza expects him to hide Riko's identity before her Last Dive to the Abyss.