Torka

Torka  is Lyza's husband and Riko's father. He was one of the members of a survey team ordered from the government, with a special mission to retrieve the Greater Artifact Unheard Bell from the 4th layer of the Abyss. Lyza married Torka when she was a White Whistle Delver, while Torka was a Black Whistle Delver. Torka died due to an attack from a repeated run-in with Delvers from other countries.

Appearance
Torka had short green hair, green eyes and he was shorter than Lyza. He wore a brown jacket, with brown gloves and boots to match it, and below it a dark gray vest. Riko's facical features are very similar to him, while her hair color takes more after Lyza's.

Unheard Bell Flashback Arc
At some point, when Lyza formed a team consisting of multiple Black Whistles assigned beneath her, she met Torka and, much to her peers shock, fell in love and became wedded to him. Some time after, Lyza became pregnant. Sadly her pregenancy had the worst possible timing because shortly after a Special Grade Artifact, the "Unheard Bell", was discovered hidden within the 4th layer of the Abyss. The discovery sparked a fierce competition between Delvers from enemy countries and those of Orth to retrieve the extremely valuable Relic. Lyza was tasked with leading a squad of Black Whistles, along with Ozen, to recover it.

The expedition took 11 months, most of it including Lyza's pregnancy, and her husband, Torka, perished during an unknown incident with other Delvers.

Delving Expertise
As a Black Whistle, Torka must have had a considering amount of skill as a Delver.

Cooking
Torka was highly proficient in cooking.