Mokiito

Mokiito (モキート, Mokīto) is a beyondian that can use a spatial organization technique, and an accomplice of the Dimensional Phantom Thief Veneno.

Dead of Night Warfare
Mokiito was aiding Veneno in the robbery of the Noctova Smile with the use of his technique, but was stopped by Leo, Chain and Zed. A little later Chain makes him help them by sending Curious far away with his spatial organization technique to help Klaus and Steven in the fight. He is arrested after the events.

V-dimensional Lineage
After seeing in the news that Veneno's edifice mysteriously vanished, he connects the dots and is happy that Veneranda and Gordon are safe and moving forward after Veneno's death.

Leo seems to have befriended him and sometimes visits him in jail to bring him things.