Marucho Marukura

Marucho Marukur is a wealthy, generous boy who specializes in  Aquos. He is the Brain of the Brawlers, a real walking encyclopedia. He loves to play  Bakugan  and to work on strategies. He used to be extremely obedient to his parents out of fear, but that changed when he joined the Brawlers; however he is still very obedient. He now has no regrets for the past, realizing that he only wanted to make his parents happy. Marucho has a butler named  Kato, though  Kato  is not usually around Marucho anymore, due to the fact that Kato is now working for Marucho's father.

His   Guardian Bakugan   was   Aquos   Preyas, who crashed   Marucho's house   party, which was thrown after he moved into   Dan 's town. Preyas was sent to the Doom Dimension in Marucho's battle with   Klaus von Hertzon which made Marucho want Preyas back so much that when Klaus opened up his portal, Marucho followed him.

Later, when Klaus shows up with Preyas  Dan  and  Runo  find a way to get Preyas back by using the ability Pure Light. Preyas evolved into a two-sided Bakugan called Angelo and Diablo by coughing them up. Unlike the other Bakugan however, Preyas multiplies when he evolves, so Marucho got to keep the old Preyas. He multiplied into  Angelo/Diablo Preyas. Preyas also has a move called "Change of Attribute" with which he can take advantage of the opponent’s gate card. When Marucho was being tested by  Frosch  he had to fight an  old version of himself, the one who always listened to his parents. This sickened him but he was able to accept his past and how it made him who he is today and passes the test. When he brawled against Dan with Preyas and  Angelo/Diablo Preyas  he was ranked seventh. Preyas Angelo/Diablo are not in  New Vestroia.

When he was in Vestroia he fought Aquos-Ventus hybrids Taygen and Hairadee alongside Shun. He originally just fought Taygen but then they teamed up when they realized that they were both able to use both Aquos and Ventus. He then defeated them by using a Diagonal Relationship with Ventus and Haos with Angelo andSkyress, and then a Pyrus and Darkus with Preyas and Diablo, defeating them. He later brawled against theTaygen once again alongside the JJ Dolls Jenny and Jewels and defeated it.