Romblus is a charismatic, intelligent, gambling and joke-loving King character of CrownLand, as well as the usurper king of the Strangeville Kingdom that his father Kaito once created. He has double sided life in his Kingdom named Strangeville, and in the Geometrical team in the mini-dimension he created with his team. Romblus isn't real Kaito's son, but that's an other story...