Омеджіма Нанамі

One of the minor characters that was penalized to the White Room and now is currently sheltering underground along with Chihiro and Sakura.

Nanami is mostly calm and collected and acts as the elder to Sakura and Chihiro, he is extremely smart and can craft equipments easily using spare still usable parts.

Nanami was part of the 9th Avenue along with his friend who went missing when patrolling, not knowing that he has stumbled upon an island and then was forced to become Carmine. Before that, he was penalized in the White Room and then dug the escape route with the help of Niki, his friend. Then, he met Sakura and Chihiro and is currently still down there.