Orroro is a star that appeared on Dex's universe assignment mentioned in the first book. As part of the spectrum pattern, it takes the role of yellow the third color of the rainbow. With the other stars included except for Amaranthis and Zelenie, it takes only a few minutes to bottle. Others belonging to its pattern include Rubini, Cobretola, Zelenie, Azulejo, Indigeen, and Amaranthis.

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