Prime universe
(Capcom's primary storyline)

Eliseo Mabou (also known as Morio) is a character of BIOHAZARD Heavenly Island.

It is responsible for the death and infection of Coco, the destruction of the engine room aboard the White Castle, the death and infection of Kylie and pursuing the team and contestants of Idol Survival, most notably AD Tominaga and Yuki Mayu.

The Creature relentlessly chases Tominaga and Mayu, ultimately cornering them atop a cliff, forcing them to hide in a tree. Tominaga fights the creature to save Mayu and they both fall over the edge of the cliff, with Tominaga using a rope tied around his waist to pull himself up. However, the creature uses its anchor to pull itself up as well. Tominaga causes the creature to fall into the ocean below by kicking the anchor loose and it is presumed dead until the duo later encounter it within a tribal cave settlement.


The creature chased Takeru and Mayu again but this time it is confronted by the arriving BSAA soldiers led by Parker Luciani, and also by an unknown creature nicknamed Schraube Damon, who assaulted Inéz and Marilou earlier and killed Mike. The fight ensues and Schraube Damon is defeated, and Parker is presumed deceased due to his injuries. After survivors encounter Dr.Dirk Miller, he explains that both creatures were natives of the island chosen for a project Miller calls Kodoku which is based on the Survival of the Fittest ideology. Morio emerges as the strongest after again fighting Schraube Damon and killing it, and it is speculated by Miller that he is, in fact, Marilou's missing brother and that Schraube Damon was once Lopez, a man had competed for her affection but was stopped by her brother after acting aggressively towards Marilou. After seemingly dying at Zi Li's hands, Morio emerged once again, and during a battle with monstrous Zi Li, she destroyed his mask revealing that he was indeed Marilou's missing brother Eliseo. Holding onto his human memories, Morio decided to save his sister from the mutated Zi Li, and as he fought the creature, Claire fired a rocket launcher decapitating Zi Li with Morio seemingly perishing in the explosion.


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