Viavolo

Overview
Viavolo is a major antagonist in the Bricking Beginning arc. His Upright, Ruler Red, is a particularly strong Upright that has the power to clap as well as BRICK anyone and anything.

Bricking Beginning Arc
Viavolo does an unnamed nefarious action that causes Viorno Viovanna to use Shiny Feeling to attempt to BRICK him. This fails, but Viavolo feigns defeat. Once Viorno is fooled, Viavolo exclaims that Viorno is about to get clapped by Ruler Red. Viorno anticipates this, and awakens Shiny Feeling the Second to BRICK Viavolo. Ten years later, Viavolo is revealed to be between reality and the BRICKED realm, and he laughs as Viorno is sent to the Splitty Aparty realm. This causes Mentally Unstable Mineral to appear and punch Viavolo fully into the BRICKED realm.