Beast decided to trust Orobos in the end and gave him the fruit. It would be kept safe and would not be used until Beast managed to take his reward, which could potentially take centuries, but for a place like the mansion, it was not a long time at all.
Finding a fruit of the dead was something that was incredibly hard to be done and could take many millennia, the Mid God Glosan believed he would be able to get a new fruit in a couple of decades, but that was thanks to his ignorance. He had managed to locate one quickly before, but many factors came into play for that, perhaps it was even his destiny to get one and rise above others, but Beast was someone that had immense luck, such that Reign and the others believed he would be the main character of a novel, always getting lucky and finding good stuff, even during a dangerous situation.
( Yup, you heard it, Beast is the real MC hahaha )